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Edit File : CarbonPeriod.php \| Size : 75.30 KB
<?php /** * This file is part of the Carbon package. * * (c) Brian Nesbitt <brian@nesbot.com> * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. / namespace Carbon; use Carbon\Exceptions\InvalidCastException; use Carbon\Exceptions\InvalidIntervalException; use Carbon\Exceptions\InvalidPeriodDateException; use Carbon\Exceptions\InvalidPeriodParameterException; use Carbon\Exceptions\NotACarbonClassException; use Carbon\Exceptions\NotAPeriodException; use Carbon\Exceptions\UnknownGetterException; use Carbon\Exceptions\UnknownMethodException; use Carbon\Exceptions\UnreachableException; use Carbon\Traits\IntervalRounding; use Carbon\Traits\Mixin; use Carbon\Traits\Options; use Closure; use Countable; use DateInterval; use DatePeriod; use DateTime; use DateTimeInterface; use InvalidArgumentException; use Iterator; use JsonSerializable; use ReflectionException; use ReturnTypeWillChange; use RuntimeException; /* * Substitution of DatePeriod with some modifications and many more features. * * @property-read int\|float $recurrences number of recurrences (if end not set). * @property-read bool $include_start_date rather the start date is included in the iteration. * @property-read bool $include_end_date rather the end date is included in the iteration (if recurrences not set). * @property-read CarbonInterface $start Period start date. * @property-read CarbonInterface $current Current date from the iteration. * @property-read CarbonInterface $end Period end date. * @property-read CarbonInterval $interval Underlying date interval instance. Always present, one day by default. * * @method static CarbonPeriod start($date, $inclusive = null) Create instance specifying start date or modify the start date if called on an instance. * @method static CarbonPeriod since($date, $inclusive = null) Alias for start(). * @method static CarbonPeriod sinceNow($inclusive = null) Create instance with start date set to now or set the start date to now if called on an instance. * @method static CarbonPeriod end($date = null, $inclusive = null) Create instance specifying end date or modify the end date if called on an instance. * @method static CarbonPeriod until($date = null, $inclusive = null) Alias for end(). * @method static CarbonPeriod untilNow($inclusive = null) Create instance with end date set to now or set the end date to now if called on an instance. * @method static CarbonPeriod dates($start, $end = null) Create instance with start and end dates or modify the start and end dates if called on an instance. * @method static CarbonPeriod between($start, $end = null) Create instance with start and end dates or modify the start and end dates if called on an instance. * @method static CarbonPeriod recurrences($recurrences = null) Create instance with maximum number of recurrences or modify the number of recurrences if called on an instance. * @method static CarbonPeriod times($recurrences = null) Alias for recurrences(). * @method static CarbonPeriod options($options = null) Create instance with options or modify the options if called on an instance. * @method static CarbonPeriod toggle($options, $state = null) Create instance with options toggled on or off, or toggle options if called on an instance. * @method static CarbonPeriod filter($callback, $name = null) Create instance with filter added to the stack or append a filter if called on an instance. * @method static CarbonPeriod push($callback, $name = null) Alias for filter(). * @method static CarbonPeriod prepend($callback, $name = null) Create instance with filter prepended to the stack or prepend a filter if called on an instance. * @method static CarbonPeriod filters(array $filters = []) Create instance with filters stack or replace the whole filters stack if called on an instance. * @method static CarbonPeriod interval($interval) Create instance with given date interval or modify the interval if called on an instance. * @method static CarbonPeriod each($interval) Create instance with given date interval or modify the interval if called on an instance. * @method static CarbonPeriod every($interval) Create instance with given date interval or modify the interval if called on an instance. * @method static CarbonPeriod step($interval) Create instance with given date interval or modify the interval if called on an instance. * @method static CarbonPeriod stepBy($interval) Create instance with given date interval or modify the interval if called on an instance. * @method static CarbonPeriod invert() Create instance with inverted date interval or invert the interval if called on an instance. * @method static CarbonPeriod years($years = 1) Create instance specifying a number of years for date interval or replace the interval by the given a number of years if called on an instance. * @method static CarbonPeriod year($years = 1) Alias for years(). * @method static CarbonPeriod months($months = 1) Create instance specifying a number of months for date interval or replace the interval by the given a number of months if called on an instance. * @method static CarbonPeriod month($months = 1) Alias for months(). * @method static CarbonPeriod weeks($weeks = 1) Create instance specifying a number of weeks for date interval or replace the interval by the given a number of weeks if called on an instance. * @method static CarbonPeriod week($weeks = 1) Alias for weeks(). * @method static CarbonPeriod days($days = 1) Create instance specifying a number of days for date interval or replace the interval by the given a number of days if called on an instance. * @method static CarbonPeriod dayz($days = 1) Alias for days(). * @method static CarbonPeriod day($days = 1) Alias for days(). * @method static CarbonPeriod hours($hours = 1) Create instance specifying a number of hours for date interval or replace the interval by the given a number of hours if called on an instance. * @method static CarbonPeriod hour($hours = 1) Alias for hours(). * @method static CarbonPeriod minutes($minutes = 1) Create instance specifying a number of minutes for date interval or replace the interval by the given a number of minutes if called on an instance. * @method static CarbonPeriod minute($minutes = 1) Alias for minutes(). * @method static CarbonPeriod seconds($seconds = 1) Create instance specifying a number of seconds for date interval or replace the interval by the given a number of seconds if called on an instance. * @method static CarbonPeriod second($seconds = 1) Alias for seconds(). * @method $this roundYear(float $precision = 1, string $function = "round") Round the current instance year with given precision using the given function. * @method $this roundYears(float $precision = 1, string $function = "round") Round the current instance year with given precision using the given function. * @method $this floorYear(float $precision = 1) Truncate the current instance year with given precision. * @method $this floorYears(float $precision = 1) Truncate the current instance year with given precision. * @method $this ceilYear(float $precision = 1) Ceil the current instance year with given precision. * @method $this ceilYears(float $precision = 1) Ceil the current instance year with given precision. * @method $this roundMonth(float $precision = 1, string $function = "round") Round the current instance month with given precision using the given function. * @method $this roundMonths(float $precision = 1, string $function = "round") Round the current instance month with given precision using the given function. * @method $this floorMonth(float $precision = 1) Truncate the current instance month with given precision. * @method $this floorMonths(float $precision = 1) Truncate the current instance month with given precision. * @method $this ceilMonth(float $precision = 1) Ceil the current instance month with given precision. * @method $this ceilMonths(float $precision = 1) Ceil the current instance month with given precision. * @method $this roundWeek(float $precision = 1, string $function = "round") Round the current instance day with given precision using the given function. * @method $this roundWeeks(float $precision = 1, string $function = "round") Round the current instance day with given precision using the given function. * @method $this floorWeek(float $precision = 1) Truncate the current instance day with given precision. * @method $this floorWeeks(float $precision = 1) Truncate the current instance day with given precision. * @method $this ceilWeek(float $precision = 1) Ceil the current instance day with given precision. * @method $this ceilWeeks(float $precision = 1) Ceil the current instance day with given precision. * @method $this roundDay(float $precision = 1, string $function = "round") Round the current instance day with given precision using the given function. * @method $this roundDays(float $precision = 1, string $function = "round") Round the current instance day with given precision using the given function. * @method $this floorDay(float $precision = 1) Truncate the current instance day with given precision. * @method $this floorDays(float $precision = 1) Truncate the current instance day with given precision. * @method $this ceilDay(float $precision = 1) Ceil the current instance day with given precision. * @method $this ceilDays(float $precision = 1) Ceil the current instance day with given precision. * @method $this roundHour(float $precision = 1, string $function = "round") Round the current instance hour with given precision using the given function. * @method $this roundHours(float $precision = 1, string $function = "round") Round the current instance hour with given precision using the given function. * @method $this floorHour(float $precision = 1) Truncate the current instance hour with given precision. * @method $this floorHours(float $precision = 1) Truncate the current instance hour with given precision. * @method $this ceilHour(float $precision = 1) Ceil the current instance hour with given precision. * @method $this ceilHours(float $precision = 1) Ceil the current instance hour with given precision. * @method $this roundMinute(float $precision = 1, string $function = "round") Round the current instance minute with given precision using the given function. * @method $this roundMinutes(float $precision = 1, string $function = "round") Round the current instance minute with given precision using the given function. * @method $this floorMinute(float $precision = 1) Truncate the current instance minute with given precision. * @method $this floorMinutes(float $precision = 1) Truncate the current instance minute with given precision. * @method $this ceilMinute(float $precision = 1) Ceil the current instance minute with given precision. * @method $this ceilMinutes(float $precision = 1) Ceil the current instance minute with given precision. * @method $this roundSecond(float $precision = 1, string $function = "round") Round the current instance second with given precision using the given function. * @method $this roundSeconds(float $precision = 1, string $function = "round") Round the current instance second with given precision using the given function. * @method $this floorSecond(float $precision = 1) Truncate the current instance second with given precision. * @method $this floorSeconds(float $precision = 1) Truncate the current instance second with given precision. * @method $this ceilSecond(float $precision = 1) Ceil the current instance second with given precision. * @method $this ceilSeconds(float $precision = 1) Ceil the current instance second with given precision. * @method $this roundMillennium(float $precision = 1, string $function = "round") Round the current instance millennium with given precision using the given function. * @method $this roundMillennia(float $precision = 1, string $function = "round") Round the current instance millennium with given precision using the given function. * @method $this floorMillennium(float $precision = 1) Truncate the current instance millennium with given precision. * @method $this floorMillennia(float $precision = 1) Truncate the current instance millennium with given precision. * @method $this ceilMillennium(float $precision = 1) Ceil the current instance millennium with given precision. * @method $this ceilMillennia(float $precision = 1) Ceil the current instance millennium with given precision. * @method $this roundCentury(float $precision = 1, string $function = "round") Round the current instance century with given precision using the given function. * @method $this roundCenturies(float $precision = 1, string $function = "round") Round the current instance century with given precision using the given function. * @method $this floorCentury(float $precision = 1) Truncate the current instance century with given precision. * @method $this floorCenturies(float $precision = 1) Truncate the current instance century with given precision. * @method $this ceilCentury(float $precision = 1) Ceil the current instance century with given precision. * @method $this ceilCenturies(float $precision = 1) Ceil the current instance century with given precision. * @method $this roundDecade(float $precision = 1, string $function = "round") Round the current instance decade with given precision using the given function. * @method $this roundDecades(float $precision = 1, string $function = "round") Round the current instance decade with given precision using the given function. * @method $this floorDecade(float $precision = 1) Truncate the current instance decade with given precision. * @method $this floorDecades(float $precision = 1) Truncate the current instance decade with given precision. * @method $this ceilDecade(float $precision = 1) Ceil the current instance decade with given precision. * @method $this ceilDecades(float $precision = 1) Ceil the current instance decade with given precision. * @method $this roundQuarter(float $precision = 1, string $function = "round") Round the current instance quarter with given precision using the given function. * @method $this roundQuarters(float $precision = 1, string $function = "round") Round the current instance quarter with given precision using the given function. * @method $this floorQuarter(float $precision = 1) Truncate the current instance quarter with given precision. * @method $this floorQuarters(float $precision = 1) Truncate the current instance quarter with given precision. * @method $this ceilQuarter(float $precision = 1) Ceil the current instance quarter with given precision. * @method $this ceilQuarters(float $precision = 1) Ceil the current instance quarter with given precision. * @method $this roundMillisecond(float $precision = 1, string $function = "round") Round the current instance millisecond with given precision using the given function. * @method $this roundMilliseconds(float $precision = 1, string $function = "round") Round the current instance millisecond with given precision using the given function. * @method $this floorMillisecond(float $precision = 1) Truncate the current instance millisecond with given precision. * @method $this floorMilliseconds(float $precision = 1) Truncate the current instance millisecond with given precision. * @method $this ceilMillisecond(float $precision = 1) Ceil the current instance millisecond with given precision. * @method $this ceilMilliseconds(float $precision = 1) Ceil the current instance millisecond with given precision. * @method $this roundMicrosecond(float $precision = 1, string $function = "round") Round the current instance microsecond with given precision using the given function. * @method $this roundMicroseconds(float $precision = 1, string $function = "round") Round the current instance microsecond with given precision using the given function. * @method $this floorMicrosecond(float $precision = 1) Truncate the current instance microsecond with given precision. * @method $this floorMicroseconds(float $precision = 1) Truncate the current instance microsecond with given precision. * @method $this ceilMicrosecond(float $precision = 1) Ceil the current instance microsecond with given precision. * @method $this ceilMicroseconds(float $precision = 1) Ceil the current instance microsecond with given precision. / class CarbonPeriod implements Iterator, Countable, JsonSerializable { use IntervalRounding; use Mixin { Mixin::mixin as baseMixin; } use Options; /* * Built-in filters. * * @var string / public const RECURRENCES_FILTER = [self::class, 'filterRecurrences']; public const END_DATE_FILTER = [self::class, 'filterEndDate']; /* * Special value which can be returned by filters to end iteration. Also a filter. * * @var string / public const END_ITERATION = [self::class, 'endIteration']; /* * Exclude start date from iteration. * * @var int / public const EXCLUDE_START_DATE = 1; /* * Exclude end date from iteration. * * @var int / public const EXCLUDE_END_DATE = 2; /* * Yield CarbonImmutable instances. * * @var int / public const IMMUTABLE = 4; /* * Number of maximum attempts before giving up on finding next valid date. * * @var int / public const NEXT_MAX_ATTEMPTS = 1000; /* * Number of maximum attempts before giving up on finding end date. * * @var int / public const END_MAX_ATTEMPTS = 10000; /* * The registered macros. * * @var array / protected static $macros = []; /* * Date class of iteration items. * * @var string / protected $dateClass = Carbon::class; /* * Underlying date interval instance. Always present, one day by default. * * @var CarbonInterval / protected $dateInterval; /* * Whether current date interval was set by default. * * @var bool / protected $isDefaultInterval; /* * The filters stack. * * @var array / protected $filters = []; /* * Period start date. Applied on rewind. Always present, now by default. * * @var CarbonInterface / protected $startDate; /* * Period end date. For inverted interval should be before the start date. Applied via a filter. * * @var CarbonInterface\|null / protected $endDate; /* * Limit for number of recurrences. Applied via a filter. * * @var int\|null / protected $recurrences; /* * Iteration options. * * @var int / protected $options; /* * Index of current date. Always sequential, even if some dates are skipped by filters. * Equal to null only before the first iteration. * * @var int / protected $key; /* * Current date. May temporarily hold unaccepted value when looking for a next valid date. * Equal to null only before the first iteration. * * @var CarbonInterface / protected $current; /* * Timezone of current date. Taken from the start date. * * @var \DateTimeZone\|null / protected $timezone; /* * The cached validation result for current date. * * @var bool\|string\|null / protected $validationResult; /* * Timezone handler for settings() method. * * @var mixed / protected $tzName; /* * Make a CarbonPeriod instance from given variable if possible. * * @param mixed $var * * @return static\|null / public static function make($var) { try { return static::instance($var); } catch (NotAPeriodException $e) { return static::create($var); } } /* * Create a new instance from a DatePeriod or CarbonPeriod object. * * @param CarbonPeriod\|DatePeriod $period * * @return static / public static function instance($period) { if ($period instanceof static) { return $period->copy(); } if ($period instanceof self) { return new static( $period->getStartDate(), $period->getEndDate() ?: $period->getRecurrences(), $period->getDateInterval(), $period->getOptions() ); } if ($period instanceof DatePeriod) { return new static( $period->start, $period->end ?: ($period->recurrences - 1), $period->interval, $period->include_start_date ? 0 : static::EXCLUDE_START_DATE ); } $class = \get_called_class(); $type = \gettype($period); throw new NotAPeriodException( 'Argument 1 passed to '.$class.'::'.__METHOD__.'() '. 'must be an instance of DatePeriod or '.$class.', '. ($type === 'object' ? 'instance of '.\get_class($period) : $type).' given.' ); } /* * Create a new instance. * * @return static / public static function create(...$params) { return static::createFromArray($params); } /* * Create a new instance from an array of parameters. * * @param array $params * * @return static / public static function createFromArray(array $params) { return new static(...$params); } /* * Create CarbonPeriod from ISO 8601 string. * * @param string $iso * @param int\|null $options * * @return static / public static function createFromIso($iso, $options = null) { $params = static::parseIso8601($iso); $instance = static::createFromArray($params); if ($options !== null) { $instance->setOptions($options); } return $instance; } /* * Return whether given interval contains non zero value of any time unit. * * @param \DateInterval $interval * * @return bool / protected static function intervalHasTime(DateInterval $interval) { return $interval->h \|\| $interval->i \|\| $interval->s \|\| $interval->f; } /* * Return whether given variable is an ISO 8601 specification. * * Note: Check is very basic, as actual validation will be done later when parsing. * We just want to ensure that variable is not any other type of a valid parameter. * * @param mixed $var * * @return bool / protected static function isIso8601($var) { if (!\is_string($var)) { return false; } // Match slash but not within a timezone name. $part = '[a-z]+(?:[_-][a-z]+)'; preg_match("#\b$part/$part\b\|(/)#i", $var, $match); return isset($match[1]); } /** * Parse given ISO 8601 string into an array of arguments. * * @SuppressWarnings(PHPMD.ElseExpression) * * @param string $iso * * @return array / protected static function parseIso8601($iso) { $result = []; $interval = null; $start = null; $end = null; foreach (explode('/', $iso) as $key => $part) { if ($key === 0 && preg_match('/^R([0-9])$/', $part, $match)) { $parsed = \strlen($match[1]) ? (int) $match[1] : null; } elseif ($interval === null && $parsed = CarbonInterval::make($part)) { $interval = $part; } elseif ($start === null && $parsed = Carbon::make($part)) { $start = $part; } elseif ($end === null && $parsed = Carbon::make(static::addMissingParts($start ?? '', $part))) { $end = $part; } else { throw new InvalidPeriodParameterException("Invalid ISO 8601 specification: $iso."); } $result[] = $parsed; } return $result; } /** * Add missing parts of the target date from the soure date. * * @param string $source * @param string $target * * @return string / protected static function addMissingParts($source, $target) { $pattern = '/'.preg_replace('/[0-9]+/', '[0-9]+', preg_quote($target, '/')).'$/'; $result = preg_replace($pattern, $target, $source, 1, $count); return $count ? $result : $target; } /* * Register a custom macro. * * @example * ``` * CarbonPeriod::macro('middle', function () { * return $this->getStartDate()->average($this->getEndDate()); * }); * echo CarbonPeriod::since('2011-05-12')->until('2011-06-03')->middle(); * ``` * * @param string $name * @param object\|callable $macro * * @return void / public static function macro($name, $macro) { static::$macros[$name] = $macro; } /* * Register macros from a mixin object. * * @example * ``` * CarbonPeriod::mixin(new class { * public function addDays() { * return function ($count = 1) { * return $this->setStartDate( * $this->getStartDate()->addDays($count) * )->setEndDate( * $this->getEndDate()->addDays($count) * ); * }; * } * public function subDays() { * return function ($count = 1) { * return $this->setStartDate( * $this->getStartDate()->subDays($count) * )->setEndDate( * $this->getEndDate()->subDays($count) * ); * }; * } * }); * echo CarbonPeriod::create('2000-01-01', '2000-02-01')->addDays(5)->subDays(3); * ``` * * @param object\|string $mixin * * @throws ReflectionException * * @return void / public static function mixin($mixin) { static::baseMixin($mixin); } /* * Check if macro is registered. * * @param string $name * * @return bool / public static function hasMacro($name) { return isset(static::$macros[$name]); } /* * Provide static proxy for instance aliases. * * @param string $method * @param array $parameters * * @return mixed / public static function __callStatic($method, $parameters) { $date = new static(); if (static::hasMacro($method)) { return static::bindMacroContext(null, function () use (&$method, &$parameters, &$date) { return $date->callMacro($method, $parameters); }); } return $date->$method(...$parameters); } /* * CarbonPeriod constructor. * * @SuppressWarnings(PHPMD.ElseExpression) * * @throws InvalidArgumentException / public function __construct(...$arguments) { // Parse and assign arguments one by one. First argument may be an ISO 8601 spec, // which will be first parsed into parts and then processed the same way. $argumentsCount = \count($arguments); if ($argumentsCount && static::isIso8601($iso = $arguments[0])) { array_splice($arguments, 0, 1, static::parseIso8601($iso)); } if ($argumentsCount === 1) { if ($arguments[0] instanceof DatePeriod) { $arguments = [ $arguments[0]->start, $arguments[0]->end ?: ($arguments[0]->recurrences - 1), $arguments[0]->interval, $arguments[0]->include_start_date ? 0 : static::EXCLUDE_START_DATE, ]; } elseif ($arguments[0] instanceof self) { $arguments = [ $arguments[0]->getStartDate(), $arguments[0]->getEndDate() ?: $arguments[0]->getRecurrences(), $arguments[0]->getDateInterval(), $arguments[0]->getOptions(), ]; } } foreach ($arguments as $argument) { if ($this->dateInterval === null && ( \is_string($argument) && preg_match( '/^(-?\d(\d(?![\/-])\|[^\d\/-]([\/-])?)\|P[T0-9].\|(?:\h\d+(?:\.\d+)?\h[a-z]+)+)$/i', $argument ) \|\| $argument instanceof DateInterval \|\| $argument instanceof Closure ) && $parsed = @CarbonInterval::make($argument) ) { $this->setDateInterval($parsed); } elseif ($this->startDate === null && $parsed = Carbon::make($argument)) { $this->setStartDate($parsed); } elseif ($this->endDate === null && $parsed = Carbon::make($argument)) { $this->setEndDate($parsed); } elseif ($this->recurrences === null && $this->endDate === null && is_numeric($argument)) { $this->setRecurrences($argument); } elseif ($this->options === null && (\is_int($argument) \|\| $argument === null)) { $this->setOptions($argument); } else { throw new InvalidPeriodParameterException('Invalid constructor parameters.'); } } if ($this->startDate === null) { $this->setStartDate(Carbon::now()); } if ($this->dateInterval === null) { $this->setDateInterval(CarbonInterval::day()); $this->isDefaultInterval = true; } if ($this->options === null) { $this->setOptions(0); } } /* * Get a copy of the instance. * * @return static / public function copy() { return clone $this; } /* * Get the getter for a property allowing both `DatePeriod` snakeCase and camelCase names. * * @param string $name * * @return callable\|null / protected function getGetter(string $name) { switch (strtolower(preg_replace('/[A-Z]/', '_$0', $name))) { case 'start': case 'start_date': return [$this, 'getStartDate']; case 'end': case 'end_date': return [$this, 'getEndDate']; case 'interval': case 'date_interval': return [$this, 'getDateInterval']; case 'recurrences': return [$this, 'getRecurrences']; case 'include_start_date': return [$this, 'isStartIncluded']; case 'include_end_date': return [$this, 'isEndIncluded']; case 'current': return [$this, 'current']; default: return null; } } /* * Get a property allowing both `DatePeriod` snakeCase and camelCase names. * * @param string $name * * @return bool\|CarbonInterface\|CarbonInterval\|int\|null / public function get(string $name) { $getter = $this->getGetter($name); if ($getter) { return $getter(); } throw new UnknownGetterException($name); } /* * Get a property allowing both `DatePeriod` snakeCase and camelCase names. * * @param string $name * * @return bool\|CarbonInterface\|CarbonInterval\|int\|null / public function __get(string $name) { return $this->get($name); } /* * Check if an attribute exists on the object * * @param string $name * * @return bool / public function __isset(string $name): bool { return $this->getGetter($name) !== null; } /* * @alias copy * * Get a copy of the instance. * * @return static / public function clone() { return clone $this; } /* * Set the iteration item class. * * @param string $dateClass * * @return $this / public function setDateClass(string $dateClass) { if (!is_a($dateClass, CarbonInterface::class, true)) { throw new NotACarbonClassException($dateClass); } $this->dateClass = $dateClass; if (is_a($dateClass, Carbon::class, true)) { $this->toggleOptions(static::IMMUTABLE, false); } elseif (is_a($dateClass, CarbonImmutable::class, true)) { $this->toggleOptions(static::IMMUTABLE, true); } return $this; } /* * Returns iteration item date class. * * @return string / public function getDateClass(): string { return $this->dateClass; } /* * Change the period date interval. * * @param DateInterval\|string $interval * * @throws InvalidIntervalException * * @return $this / public function setDateInterval($interval) { if (!$interval = CarbonInterval::make($interval)) { throw new InvalidIntervalException('Invalid interval.'); } if ($interval->spec() === 'PT0S' && !$interval->f && !$interval->getStep()) { throw new InvalidIntervalException('Empty interval is not accepted.'); } $this->dateInterval = $interval; $this->isDefaultInterval = false; $this->handleChangedParameters(); return $this; } /* * Invert the period date interval. * * @return $this / public function invertDateInterval() { $interval = $this->dateInterval->invert(); return $this->setDateInterval($interval); } /* * Set start and end date. * * @param DateTime\|DateTimeInterface\|string $start * @param DateTime\|DateTimeInterface\|string\|null $end * * @return $this / public function setDates($start, $end) { $this->setStartDate($start); $this->setEndDate($end); return $this; } /* * Change the period options. * * @param int\|null $options * * @throws InvalidArgumentException * * @return $this / public function setOptions($options) { if (!\is_int($options) && !\is_null($options)) { throw new InvalidPeriodParameterException('Invalid options.'); } $this->options = $options ?: 0; $this->handleChangedParameters(); return $this; } /* * Get the period options. * * @return int / public function getOptions() { return $this->options; } /* * Toggle given options on or off. * * @param int $options * @param bool\|null $state * * @throws \InvalidArgumentException * * @return $this / public function toggleOptions($options, $state = null) { if ($state === null) { $state = ($this->options & $options) !== $options; } return $this->setOptions( $state ? $this->options \| $options : $this->options & ~$options ); } /* * Toggle EXCLUDE_START_DATE option. * * @param bool $state * * @return $this / public function excludeStartDate($state = true) { return $this->toggleOptions(static::EXCLUDE_START_DATE, $state); } /* * Toggle EXCLUDE_END_DATE option. * * @param bool $state * * @return $this / public function excludeEndDate($state = true) { return $this->toggleOptions(static::EXCLUDE_END_DATE, $state); } /* * Get the underlying date interval. * * @return CarbonInterval / public function getDateInterval() { return $this->dateInterval->copy(); } /* * Get start date of the period. * * @param string\|null $rounding Optional rounding 'floor', 'ceil', 'round' using the period interval. * * @return CarbonInterface / public function getStartDate(string $rounding = null) { $date = $this->startDate->avoidMutation(); return $rounding ? $date->round($this->getDateInterval(), $rounding) : $date; } /* * Get end date of the period. * * @param string\|null $rounding Optional rounding 'floor', 'ceil', 'round' using the period interval. * * @return CarbonInterface\|null / public function getEndDate(string $rounding = null) { if (!$this->endDate) { return null; } $date = $this->endDate->avoidMutation(); return $rounding ? $date->round($this->getDateInterval(), $rounding) : $date; } /* * Get number of recurrences. * * @return int\|float\|null / public function getRecurrences() { return $this->recurrences; } /* * Returns true if the start date should be excluded. * * @return bool / public function isStartExcluded() { return ($this->options & static::EXCLUDE_START_DATE) !== 0; } /* * Returns true if the end date should be excluded. * * @return bool / public function isEndExcluded() { return ($this->options & static::EXCLUDE_END_DATE) !== 0; } /* * Returns true if the start date should be included. * * @return bool / public function isStartIncluded() { return !$this->isStartExcluded(); } /* * Returns true if the end date should be included. * * @return bool / public function isEndIncluded() { return !$this->isEndExcluded(); } /* * Return the start if it's included by option, else return the start + 1 period interval. * * @return CarbonInterface / public function getIncludedStartDate() { $start = $this->getStartDate(); if ($this->isStartExcluded()) { return $start->add($this->getDateInterval()); } return $start; } /* * Return the end if it's included by option, else return the end - 1 period interval. * Warning: if the period has no fixed end, this method will iterate the period to calculate it. * * @return CarbonInterface / public function getIncludedEndDate() { $end = $this->getEndDate(); if (!$end) { return $this->calculateEnd(); } if ($this->isEndExcluded()) { return $end->sub($this->getDateInterval()); } return $end; } /* * Add a filter to the stack. * * @SuppressWarnings(PHPMD.UnusedFormalParameter) * * @param callable $callback * @param string $name * * @return $this / public function addFilter($callback, $name = null) { $tuple = $this->createFilterTuple(\func_get_args()); $this->filters[] = $tuple; $this->handleChangedParameters(); return $this; } /* * Prepend a filter to the stack. * * @SuppressWarnings(PHPMD.UnusedFormalParameter) * * @param callable $callback * @param string $name * * @return $this / public function prependFilter($callback, $name = null) { $tuple = $this->createFilterTuple(\func_get_args()); array_unshift($this->filters, $tuple); $this->handleChangedParameters(); return $this; } /* * Remove a filter by instance or name. * * @param callable\|string $filter * * @return $this / public function removeFilter($filter) { $key = \is_callable($filter) ? 0 : 1; $this->filters = array_values(array_filter( $this->filters, function ($tuple) use ($key, $filter) { return $tuple[$key] !== $filter; } )); $this->updateInternalState(); $this->handleChangedParameters(); return $this; } /* * Return whether given instance or name is in the filter stack. * * @param callable\|string $filter * * @return bool / public function hasFilter($filter) { $key = \is_callable($filter) ? 0 : 1; foreach ($this->filters as $tuple) { if ($tuple[$key] === $filter) { return true; } } return false; } /* * Get filters stack. * * @return array / public function getFilters() { return $this->filters; } /* * Set filters stack. * * @param array $filters * * @return $this / public function setFilters(array $filters) { $this->filters = $filters; $this->updateInternalState(); $this->handleChangedParameters(); return $this; } /* * Reset filters stack. * * @return $this / public function resetFilters() { $this->filters = []; if ($this->endDate !== null) { $this->filters[] = [static::END_DATE_FILTER, null]; } if ($this->recurrences !== null) { $this->filters[] = [static::RECURRENCES_FILTER, null]; } $this->handleChangedParameters(); return $this; } /* * Add a recurrences filter (set maximum number of recurrences). * * @param int\|float\|null $recurrences * * @throws InvalidArgumentException * * @return $this / public function setRecurrences($recurrences) { if (!is_numeric($recurrences) && !\is_null($recurrences) \|\| $recurrences < 0) { throw new InvalidPeriodParameterException('Invalid number of recurrences.'); } if ($recurrences === null) { return $this->removeFilter(static::RECURRENCES_FILTER); } $this->recurrences = $recurrences === INF ? INF : (int) $recurrences; if (!$this->hasFilter(static::RECURRENCES_FILTER)) { return $this->addFilter(static::RECURRENCES_FILTER); } $this->handleChangedParameters(); return $this; } /* * Change the period start date. * * @param DateTime\|DateTimeInterface\|string $date * @param bool\|null $inclusive * * @throws InvalidPeriodDateException * * @return $this / public function setStartDate($date, $inclusive = null) { if (!$date = ([$this->dateClass, 'make'])($date)) { throw new InvalidPeriodDateException('Invalid start date.'); } $this->startDate = $date; if ($inclusive !== null) { $this->toggleOptions(static::EXCLUDE_START_DATE, !$inclusive); } return $this; } /* * Change the period end date. * * @param DateTime\|DateTimeInterface\|string\|null $date * @param bool\|null $inclusive * * @throws \InvalidArgumentException * * @return $this / public function setEndDate($date, $inclusive = null) { if (!\is_null($date) && !$date = ([$this->dateClass, 'make'])($date)) { throw new InvalidPeriodDateException('Invalid end date.'); } if (!$date) { return $this->removeFilter(static::END_DATE_FILTER); } $this->endDate = $date; if ($inclusive !== null) { $this->toggleOptions(static::EXCLUDE_END_DATE, !$inclusive); } if (!$this->hasFilter(static::END_DATE_FILTER)) { return $this->addFilter(static::END_DATE_FILTER); } $this->handleChangedParameters(); return $this; } /* * Check if the current position is valid. * * @return bool / public function valid() { return $this->validateCurrentDate() === true; } /* * Return the current key. * * @return int\|null / public function key() { return $this->valid() ? $this->key : null; } /* * Return the current date. * * @return CarbonInterface\|null / public function current() { return $this->valid() ? $this->prepareForReturn($this->current) : null; } /* * Move forward to the next date. * * @throws RuntimeException * * @return void / public function next() { if ($this->current === null) { $this->rewind(); } if ($this->validationResult !== static::END_ITERATION) { $this->key++; $this->incrementCurrentDateUntilValid(); } } /* * Rewind to the start date. * * Iterating over a date in the UTC timezone avoids bug during backward DST change. * * @see https://bugs.php.net/bug.php?id=72255 * @see https://bugs.php.net/bug.php?id=74274 * @see https://wiki.php.net/rfc/datetime_and_daylight_saving_time * * @throws RuntimeException * * @return void / public function rewind() { $this->key = 0; $this->current = ([$this->dateClass, 'make'])($this->startDate); $settings = $this->getSettings(); if ($this->hasLocalTranslator()) { $settings['locale'] = $this->getTranslatorLocale(); } $this->current->settings($settings); $this->timezone = static::intervalHasTime($this->dateInterval) ? $this->current->getTimezone() : null; if ($this->timezone) { $this->current = $this->current->utc(); } $this->validationResult = null; if ($this->isStartExcluded() \|\| $this->validateCurrentDate() === false) { $this->incrementCurrentDateUntilValid(); } } /* * Skip iterations and returns iteration state (false if ended, true if still valid). * * @param int $count steps number to skip (1 by default) * * @return bool / public function skip($count = 1) { for ($i = $count; $this->valid() && $i > 0; $i--) { $this->next(); } return $this->valid(); } /* * Format the date period as ISO 8601. * * @return string / public function toIso8601String() { $parts = []; if ($this->recurrences !== null) { $parts[] = 'R'.$this->recurrences; } $parts[] = $this->startDate->toIso8601String(); $parts[] = $this->dateInterval->spec(); if ($this->endDate !== null) { $parts[] = $this->endDate->toIso8601String(); } return implode('/', $parts); } /* * Convert the date period into a string. * * @return string / public function toString() { $translator = ([$this->dateClass, 'getTranslator'])(); $parts = []; $format = !$this->startDate->isStartOfDay() \|\| $this->endDate && !$this->endDate->isStartOfDay() ? 'Y-m-d H:i:s' : 'Y-m-d'; if ($this->recurrences !== null) { $parts[] = $this->translate('period_recurrences', [], $this->recurrences, $translator); } $parts[] = $this->translate('period_interval', [':interval' => $this->dateInterval->forHumans([ 'join' => true, ])], null, $translator); $parts[] = $this->translate('period_start_date', [':date' => $this->startDate->rawFormat($format)], null, $translator); if ($this->endDate !== null) { $parts[] = $this->translate('period_end_date', [':date' => $this->endDate->rawFormat($format)], null, $translator); } $result = implode(' ', $parts); return mb_strtoupper(mb_substr($result, 0, 1)).mb_substr($result, 1); } /* * Format the date period as ISO 8601. * * @return string / public function spec() { return $this->toIso8601String(); } /* * Cast the current instance into the given class. * * @param string $className The $className::instance() method will be called to cast the current object. * * @return DatePeriod / public function cast(string $className) { if (!method_exists($className, 'instance')) { if (is_a($className, DatePeriod::class, true)) { return new $className( $this->getStartDate(), $this->getDateInterval(), $this->getEndDate() ? $this->getIncludedEndDate() : $this->getRecurrences(), $this->isStartExcluded() ? DatePeriod::EXCLUDE_START_DATE : 0 ); } throw new InvalidCastException("$className has not the instance() method needed to cast the date."); } return $className::instance($this); } /* * Return native DatePeriod PHP object matching the current instance. * * @example * ``` * var_dump(CarbonPeriod::create('2021-01-05', '2021-02-15')->toDatePeriod()); * ``` * * @return DatePeriod / public function toDatePeriod() { return $this->cast(DatePeriod::class); } /* * Convert the date period into an array without changing current iteration state. * * @return CarbonInterface[] / public function toArray() { $state = [ $this->key, $this->current ? $this->current->avoidMutation() : null, $this->validationResult, ]; $result = iterator_to_array($this); [$this->key, $this->current, $this->validationResult] = $state; return $result; } /* * Count dates in the date period. * * @return int / public function count() { return \count($this->toArray()); } /* * Return the first date in the date period. * * @return CarbonInterface\|null / public function first() { return ($this->toArray() ?: [])[0] ?? null; } /* * Return the last date in the date period. * * @return CarbonInterface\|null / public function last() { $array = $this->toArray(); return $array ? $array[\count($array) - 1] : null; } /* * Convert the date period into a string. * * @return string / public function __toString() { return $this->toString(); } /* * Add aliases for setters. * * CarbonPeriod::days(3)->hours(5)->invert() * ->sinceNow()->until('2010-01-10') * ->filter(...) * ->count() * * Note: We use magic method to let static and instance aliases with the same names. * * @param string $method * @param array $parameters * * @return mixed / public function __call($method, $parameters) { if (static::hasMacro($method)) { return static::bindMacroContext($this, function () use (&$method, &$parameters) { return $this->callMacro($method, $parameters); }); } $roundedValue = $this->callRoundMethod($method, $parameters); if ($roundedValue !== null) { return $roundedValue; } $first = \count($parameters) >= 1 ? $parameters[0] : null; $second = \count($parameters) >= 2 ? $parameters[1] : null; switch ($method) { case 'start': case 'since': return $this->setStartDate($first, $second); case 'sinceNow': return $this->setStartDate(new Carbon, $first); case 'end': case 'until': return $this->setEndDate($first, $second); case 'untilNow': return $this->setEndDate(new Carbon, $first); case 'dates': case 'between': return $this->setDates($first, $second); case 'recurrences': case 'times': return $this->setRecurrences($first); case 'options': return $this->setOptions($first); case 'toggle': return $this->toggleOptions($first, $second); case 'filter': case 'push': return $this->addFilter($first, $second); case 'prepend': return $this->prependFilter($first, $second); case 'filters': return $this->setFilters($first ?: []); case 'interval': case 'each': case 'every': case 'step': case 'stepBy': return $this->setDateInterval($first); case 'invert': return $this->invertDateInterval(); case 'years': case 'year': case 'months': case 'month': case 'weeks': case 'week': case 'days': case 'dayz': case 'day': case 'hours': case 'hour': case 'minutes': case 'minute': case 'seconds': case 'second': return $this->setDateInterval(( // Override default P1D when instantiating via fluent setters. [$this->isDefaultInterval ? new CarbonInterval('PT0S') : $this->dateInterval, $method] )( \count($parameters) === 0 ? 1 : $first )); } if ($this->localStrictModeEnabled ?? Carbon::isStrictModeEnabled()) { throw new UnknownMethodException($method); } return $this; } /* * Set the instance's timezone from a string or object and add/subtract the offset difference. * * @param \DateTimeZone\|string $timezone * * @return static / public function shiftTimezone($timezone) { $this->tzName = $timezone; $this->timezone = $timezone; return $this; } /* * Returns the end is set, else calculated from start an recurrences. * * @param string\|null $rounding Optional rounding 'floor', 'ceil', 'round' using the period interval. * * @return CarbonInterface / public function calculateEnd(string $rounding = null) { if ($end = $this->getEndDate($rounding)) { return $end; } if ($this->dateInterval->isEmpty()) { return $this->getStartDate($rounding); } $date = $this->getEndFromRecurrences() ?? $this->iterateUntilEnd(); if ($date && $rounding) { $date = $date->avoidMutation()->round($this->getDateInterval(), $rounding); } return $date; } /* * @return CarbonInterface\|null / private function getEndFromRecurrences() { if ($this->recurrences === null) { throw new UnreachableException( "Could not calculate period end without either explicit end or recurrences.\n". "If you're looking for a forever-period, use ->setRecurrences(INF)." ); } if ($this->recurrences === INF) { $start = $this->getStartDate(); return $start < $start->avoidMutation()->add($this->getDateInterval()) ? CarbonImmutable::endOfTime() : CarbonImmutable::startOfTime(); } if ($this->filters === [[static::RECURRENCES_FILTER, null]]) { return $this->getStartDate()->avoidMutation()->add( $this->getDateInterval()->times( $this->recurrences - ($this->isStartExcluded() ? 0 : 1) ) ); } return null; } /* * @return CarbonInterface\|null / private function iterateUntilEnd() { $attempts = 0; $date = null; foreach ($this as $date) { if (++$attempts > static::END_MAX_ATTEMPTS) { throw new UnreachableException( 'Could not calculate period end after iterating '.static::END_MAX_ATTEMPTS.' times.' ); } } return $date; } /* * Returns true if the current period overlaps the given one (if 1 parameter passed) * or the period between 2 dates (if 2 parameters passed). * * @param CarbonPeriod\|\DateTimeInterface\|Carbon\|CarbonImmutable\|string $rangeOrRangeStart * @param \DateTimeInterface\|Carbon\|CarbonImmutable\|string\|null $rangeEnd * * @return bool / public function overlaps($rangeOrRangeStart, $rangeEnd = null) { $range = $rangeEnd ? static::create($rangeOrRangeStart, $rangeEnd) : $rangeOrRangeStart; if (!($range instanceof self)) { $range = static::create($range); } [$start, $end] = $this->orderCouple($this->getStartDate(), $this->calculateEnd()); [$rangeStart, $rangeEnd] = $this->orderCouple($range->getStartDate(), $range->calculateEnd()); return $end > $rangeStart && $rangeEnd > $start; } /* * Execute a given function on each date of the period. * * @example * ``` * Carbon::create('2020-11-29')->daysUntil('2020-12-24')->forEach(function (Carbon $date) { * echo $date->diffInDays('2020-12-25')." days before Christmas!\n"; * }); * ``` * * @param callable $callback / public function forEach(callable $callback) { foreach ($this as $date) { $callback($date); } } /* * Execute a given function on each date of the period and yield the result of this function. * * @example * ``` * $period = Carbon::create('2020-11-29')->daysUntil('2020-12-24'); * echo implode("\n", iterator_to_array($period->map(function (Carbon $date) { * return $date->diffInDays('2020-12-25').' days before Christmas!'; * }))); * ``` * * @param callable $callback * * @return \Generator / public function map(callable $callback) { foreach ($this as $date) { yield $callback($date); } } /* * Determines if the instance is equal to another. * Warning: if options differ, instances wil never be equal. * * @param mixed $period * * @see equalTo() * * @return bool / public function eq($period): bool { return $this->equalTo($period); } /* * Determines if the instance is equal to another. * Warning: if options differ, instances wil never be equal. * * @param mixed $period * * @return bool / public function equalTo($period): bool { if (!($period instanceof self)) { $period = self::make($period); } $end = $this->getEndDate(); return $period !== null && $this->getDateInterval()->eq($period->getDateInterval()) && $this->getStartDate()->eq($period->getStartDate()) && ($end ? $end->eq($period->getEndDate()) : $this->getRecurrences() === $period->getRecurrences()) && ($this->getOptions() & (~static::IMMUTABLE)) === ($period->getOptions() & (~static::IMMUTABLE)); } /* * Determines if the instance is not equal to another. * Warning: if options differ, instances wil never be equal. * * @param mixed $period * * @see notEqualTo() * * @return bool / public function ne($period): bool { return $this->notEqualTo($period); } /* * Determines if the instance is not equal to another. * Warning: if options differ, instances wil never be equal. * * @param mixed $period * * @return bool / public function notEqualTo($period): bool { return !$this->eq($period); } /* * Determines if the start date is before an other given date. * (Rather start/end are included by options is ignored.) * * @param mixed $date * * @return bool / public function startsBefore($date = null): bool { return $this->getStartDate()->lessThan($this->resolveCarbon($date)); } /* * Determines if the start date is before or the same as a given date. * (Rather start/end are included by options is ignored.) * * @param mixed $date * * @return bool / public function startsBeforeOrAt($date = null): bool { return $this->getStartDate()->lessThanOrEqualTo($this->resolveCarbon($date)); } /* * Determines if the start date is after an other given date. * (Rather start/end are included by options is ignored.) * * @param mixed $date * * @return bool / public function startsAfter($date = null): bool { return $this->getStartDate()->greaterThan($this->resolveCarbon($date)); } /* * Determines if the start date is after or the same as a given date. * (Rather start/end are included by options is ignored.) * * @param mixed $date * * @return bool / public function startsAfterOrAt($date = null): bool { return $this->getStartDate()->greaterThanOrEqualTo($this->resolveCarbon($date)); } /* * Determines if the start date is the same as a given date. * (Rather start/end are included by options is ignored.) * * @param mixed $date * * @return bool / public function startsAt($date = null): bool { return $this->getStartDate()->equalTo($this->resolveCarbon($date)); } /* * Determines if the end date is before an other given date. * (Rather start/end are included by options is ignored.) * * @param mixed $date * * @return bool / public function endsBefore($date = null): bool { return $this->calculateEnd()->lessThan($this->resolveCarbon($date)); } /* * Determines if the end date is before or the same as a given date. * (Rather start/end are included by options is ignored.) * * @param mixed $date * * @return bool / public function endsBeforeOrAt($date = null): bool { return $this->calculateEnd()->lessThanOrEqualTo($this->resolveCarbon($date)); } /* * Determines if the end date is after an other given date. * (Rather start/end are included by options is ignored.) * * @param mixed $date * * @return bool / public function endsAfter($date = null): bool { return $this->calculateEnd()->greaterThan($this->resolveCarbon($date)); } /* * Determines if the end date is after or the same as a given date. * (Rather start/end are included by options is ignored.) * * @param mixed $date * * @return bool / public function endsAfterOrAt($date = null): bool { return $this->calculateEnd()->greaterThanOrEqualTo($this->resolveCarbon($date)); } /* * Determines if the end date is the same as a given date. * (Rather start/end are included by options is ignored.) * * @param mixed $date * * @return bool / public function endsAt($date = null): bool { return $this->calculateEnd()->equalTo($this->resolveCarbon($date)); } /* * Return true if start date is now or later. * (Rather start/end are included by options is ignored.) * * @return bool / public function isStarted(): bool { return $this->startsBeforeOrAt(); } /* * Return true if end date is now or later. * (Rather start/end are included by options is ignored.) * * @return bool / public function isEnded(): bool { return $this->endsBeforeOrAt(); } /* * Return true if now is between start date (included) and end date (excluded). * (Rather start/end are included by options is ignored.) * * @return bool / public function isInProgress(): bool { return $this->isStarted() && !$this->isEnded(); } /* * Round the current instance at the given unit with given precision if specified and the given function. * * @param string $unit * @param float\|int\|string\|\DateInterval\|null $precision * @param string $function * * @return $this / public function roundUnit($unit, $precision = 1, $function = 'round') { $this->setStartDate($this->getStartDate()->roundUnit($unit, $precision, $function)); if ($this->endDate) { $this->setEndDate($this->getEndDate()->roundUnit($unit, $precision, $function)); } $this->setDateInterval($this->getDateInterval()->roundUnit($unit, $precision, $function)); return $this; } /* * Truncate the current instance at the given unit with given precision if specified. * * @param string $unit * @param float\|int\|string\|\DateInterval\|null $precision * * @return $this / public function floorUnit($unit, $precision = 1) { return $this->roundUnit($unit, $precision, 'floor'); } /* * Ceil the current instance at the given unit with given precision if specified. * * @param string $unit * @param float\|int\|string\|\DateInterval\|null $precision * * @return $this / public function ceilUnit($unit, $precision = 1) { return $this->roundUnit($unit, $precision, 'ceil'); } /* * Round the current instance second with given precision if specified (else period interval is used). * * @param float\|int\|string\|\DateInterval\|null $precision * @param string $function * * @return $this / public function round($precision = null, $function = 'round') { return $this->roundWith($precision ?? (string) $this->getDateInterval(), $function); } /* * Round the current instance second with given precision if specified (else period interval is used). * * @param float\|int\|string\|\DateInterval\|null $precision * * @return $this / public function floor($precision = null) { return $this->round($precision, 'floor'); } /* * Ceil the current instance second with given precision if specified (else period interval is used). * * @param float\|int\|string\|\DateInterval\|null $precision * * @return $this / public function ceil($precision = null) { return $this->round($precision, 'ceil'); } /* * Specify data which should be serialized to JSON. * * @link https://php.net/manual/en/jsonserializable.jsonserialize.php * * @return CarbonInterface[] / #[ReturnTypeWillChange] public function jsonSerialize() { return $this->toArray(); } /* * Return true if the given date is between start and end. * * @param \Carbon\Carbon\|\Carbon\CarbonPeriod\|\Carbon\CarbonInterval\|\DateInterval\|\DatePeriod\|\DateTimeInterface\|string\|null $date * * @return bool / public function contains($date = null): bool { $startMethod = 'startsBefore'.($this->isStartIncluded() ? 'OrAt' : ''); $endMethod = 'endsAfter'.($this->isEndIncluded() ? 'OrAt' : ''); return $this->$startMethod($date) && $this->$endMethod($date); } /* * Return true if the current period follows a given other period (with no overlap). * For instance, [2019-08-01 -> 2019-08-12] follows [2019-07-29 -> 2019-07-31] * Note than in this example, follows() would be false if 2019-08-01 or 2019-07-31 was excluded by options. * * @param \Carbon\CarbonPeriod\|\DatePeriod\|string $period * * @return bool / public function follows($period, ...$arguments): bool { $period = $this->resolveCarbonPeriod($period, ...$arguments); return $this->getIncludedStartDate()->equalTo($period->getIncludedEndDate()->add($period->getDateInterval())); } /* * Return true if the given other period follows the current one (with no overlap). * For instance, [2019-07-29 -> 2019-07-31] is followed by [2019-08-01 -> 2019-08-12] * Note than in this example, isFollowedBy() would be false if 2019-08-01 or 2019-07-31 was excluded by options. * * @param \Carbon\CarbonPeriod\|\DatePeriod\|string $period * * @return bool / public function isFollowedBy($period, ...$arguments): bool { $period = $this->resolveCarbonPeriod($period, ...$arguments); return $period->follows($this); } /* * Return true if the given period either follows or is followed by the current one. * * @see follows() * @see isFollowedBy() * * @param \Carbon\CarbonPeriod\|\DatePeriod\|string $period * * @return bool / public function isConsecutiveWith($period, ...$arguments): bool { return $this->follows($period, ...$arguments) \|\| $this->isFollowedBy($period, ...$arguments); } /* * Update properties after removing built-in filters. * * @return void / protected function updateInternalState() { if (!$this->hasFilter(static::END_DATE_FILTER)) { $this->endDate = null; } if (!$this->hasFilter(static::RECURRENCES_FILTER)) { $this->recurrences = null; } } /* * Create a filter tuple from raw parameters. * * Will create an automatic filter callback for one of Carbon's is* methods. * * @param array $parameters * * @return array / protected function createFilterTuple(array $parameters) { $method = array_shift($parameters); if (!$this->isCarbonPredicateMethod($method)) { return [$method, array_shift($parameters)]; } return [function ($date) use ($method, $parameters) { return ([$date, $method])(...$parameters); }, $method]; } /* * Return whether given callable is a string pointing to one of Carbon's is* methods * and should be automatically converted to a filter callback. * * @param callable $callable * * @return bool / protected function isCarbonPredicateMethod($callable) { return \is_string($callable) && substr($callable, 0, 2) === 'is' && (method_exists($this->dateClass, $callable) \|\| ([$this->dateClass, 'hasMacro'])($callable)); } /* * Recurrences filter callback (limits number of recurrences). * * @SuppressWarnings(PHPMD.UnusedFormalParameter) * * @param \Carbon\Carbon $current * @param int $key * * @return bool\|string / protected function filterRecurrences($current, $key) { if ($key < $this->recurrences) { return true; } return static::END_ITERATION; } /* * End date filter callback. * * @param \Carbon\Carbon $current * * @return bool\|string / protected function filterEndDate($current) { if (!$this->isEndExcluded() && $current == $this->endDate) { return true; } if ($this->dateInterval->invert ? $current > $this->endDate : $current < $this->endDate) { return true; } return static::END_ITERATION; } /* * End iteration filter callback. * * @return string / protected function endIteration() { return static::END_ITERATION; } /* * Handle change of the parameters. / protected function handleChangedParameters() { if (($this->getOptions() & static::IMMUTABLE) && $this->dateClass === Carbon::class) { $this->setDateClass(CarbonImmutable::class); } elseif (!($this->getOptions() & static::IMMUTABLE) && $this->dateClass === CarbonImmutable::class) { $this->setDateClass(Carbon::class); } $this->validationResult = null; } /* * Validate current date and stop iteration when necessary. * * Returns true when current date is valid, false if it is not, or static::END_ITERATION * when iteration should be stopped. * * @return bool\|string / protected function validateCurrentDate() { if ($this->current === null) { $this->rewind(); } // Check after the first rewind to avoid repeating the initial validation. if ($this->validationResult !== null) { return $this->validationResult; } return $this->validationResult = $this->checkFilters(); } /* * Check whether current value and key pass all the filters. * * @return bool\|string / protected function checkFilters() { $current = $this->prepareForReturn($this->current); foreach ($this->filters as $tuple) { $result = \call_user_func( $tuple[0], $current->avoidMutation(), $this->key, $this ); if ($result === static::END_ITERATION) { return static::END_ITERATION; } if (!$result) { return false; } } return true; } /* * Prepare given date to be returned to the external logic. * * @param CarbonInterface $date * * @return CarbonInterface / protected function prepareForReturn(CarbonInterface $date) { $date = ([$this->dateClass, 'make'])($date); if ($this->timezone) { $date = $date->setTimezone($this->timezone); } return $date; } /* * Keep incrementing the current date until a valid date is found or the iteration is ended. * * @throws RuntimeException * * @return void / protected function incrementCurrentDateUntilValid() { $attempts = 0; do { $this->current = $this->current->add($this->dateInterval); $this->validationResult = null; if (++$attempts > static::NEXT_MAX_ATTEMPTS) { throw new UnreachableException('Could not find next valid date.'); } } while ($this->validateCurrentDate() === false); } /* * Call given macro. * * @param string $name * @param array $parameters * * @return mixed / protected function callMacro($name, $parameters) { $macro = static::$macros[$name]; if ($macro instanceof Closure) { $boundMacro = @$macro->bindTo($this, static::class) ?: @$macro->bindTo(null, static::class); return ($boundMacro ?: $macro)(...$parameters); } return $macro(...$parameters); } /* * Return the Carbon instance passed through, a now instance in the same timezone * if null given or parse the input if string given. * * @param \Carbon\Carbon\|\Carbon\CarbonPeriod\|\Carbon\CarbonInterval\|\DateInterval\|\DatePeriod\|\DateTimeInterface\|string\|null $date * * @return \Carbon\CarbonInterface / protected function resolveCarbon($date = null) { return $this->getStartDate()->nowWithSameTz()->carbonize($date); } /* * Resolve passed arguments or DatePeriod to a CarbonPeriod object. * * @param mixed $period * @param mixed ...$arguments * * @return static */ protected function resolveCarbonPeriod($period, ...$arguments) { if ($period instanceof self) { return $period; } return $period instanceof DatePeriod ? static::instance($period) : static::create($period, ...$arguments); } private function orderCouple($first, $second): array { return $first > $second ? [$second, $first] : [$first, $second]; } } Back

Edit File : CarbonPeriod.php | Size : 75.30 KB

<?php

/**
 * This file is part of the Carbon package.
 *
 * (c) Brian Nesbitt <brian@nesbot.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace Carbon;

use Carbon\Exceptions\InvalidCastException;
use Carbon\Exceptions\InvalidIntervalException;
use Carbon\Exceptions\InvalidPeriodDateException;
use Carbon\Exceptions\InvalidPeriodParameterException;
use Carbon\Exceptions\NotACarbonClassException;
use Carbon\Exceptions\NotAPeriodException;
use Carbon\Exceptions\UnknownGetterException;
use Carbon\Exceptions\UnknownMethodException;
use Carbon\Exceptions\UnreachableException;
use Carbon\Traits\IntervalRounding;
use Carbon\Traits\Mixin;
use Carbon\Traits\Options;
use Closure;
use Countable;
use DateInterval;
use DatePeriod;
use DateTime;
use DateTimeInterface;
use InvalidArgumentException;
use Iterator;
use JsonSerializable;
use ReflectionException;
use ReturnTypeWillChange;
use RuntimeException;

/**
 * Substitution of DatePeriod with some modifications and many more features.
 *
 * @property-read int|float $recurrences number of recurrences (if end not set).
 * @property-read bool $include_start_date rather the start date is included in the iteration.
 * @property-read bool $include_end_date rather the end date is included in the iteration (if recurrences not set).
 * @property-read CarbonInterface $start Period start date.
 * @property-read CarbonInterface $current Current date from the iteration.
 * @property-read CarbonInterface $end Period end date.
 * @property-read CarbonInterval $interval Underlying date interval instance. Always present, one day by default.
 *
 * @method static CarbonPeriod start($date, $inclusive = null) Create instance specifying start date or modify the start date if called on an instance.
 * @method static CarbonPeriod since($date, $inclusive = null) Alias for start().
 * @method static CarbonPeriod sinceNow($inclusive = null) Create instance with start date set to now or set the start date to now if called on an instance.
 * @method static CarbonPeriod end($date = null, $inclusive = null) Create instance specifying end date or modify the end date if called on an instance.
 * @method static CarbonPeriod until($date = null, $inclusive = null) Alias for end().
 * @method static CarbonPeriod untilNow($inclusive = null) Create instance with end date set to now or set the end date to now if called on an instance.
 * @method static CarbonPeriod dates($start, $end = null) Create instance with start and end dates or modify the start and end dates if called on an instance.
 * @method static CarbonPeriod between($start, $end = null) Create instance with start and end dates or modify the start and end dates if called on an instance.
 * @method static CarbonPeriod recurrences($recurrences = null) Create instance with maximum number of recurrences or modify the number of recurrences if called on an instance.
 * @method static CarbonPeriod times($recurrences = null) Alias for recurrences().
 * @method static CarbonPeriod options($options = null) Create instance with options or modify the options if called on an instance.
 * @method static CarbonPeriod toggle($options, $state = null) Create instance with options toggled on or off, or toggle options if called on an instance.
 * @method static CarbonPeriod filter($callback, $name = null) Create instance with filter added to the stack or append a filter if called on an instance.
 * @method static CarbonPeriod push($callback, $name = null) Alias for filter().
 * @method static CarbonPeriod prepend($callback, $name = null) Create instance with filter prepended to the stack or prepend a filter if called on an instance.
 * @method static CarbonPeriod filters(array $filters = []) Create instance with filters stack or replace the whole filters stack if called on an instance.
 * @method static CarbonPeriod interval($interval) Create instance with given date interval or modify the interval if called on an instance.
 * @method static CarbonPeriod each($interval) Create instance with given date interval or modify the interval if called on an instance.
 * @method static CarbonPeriod every($interval) Create instance with given date interval or modify the interval if called on an instance.
 * @method static CarbonPeriod step($interval) Create instance with given date interval or modify the interval if called on an instance.
 * @method static CarbonPeriod stepBy($interval) Create instance with given date interval or modify the interval if called on an instance.
 * @method static CarbonPeriod invert() Create instance with inverted date interval or invert the interval if called on an instance.
 * @method static CarbonPeriod years($years = 1) Create instance specifying a number of years for date interval or replace the interval by the given a number of years if called on an instance.
 * @method static CarbonPeriod year($years = 1) Alias for years().
 * @method static CarbonPeriod months($months = 1) Create instance specifying a number of months for date interval or replace the interval by the given a number of months if called on an instance.
 * @method static CarbonPeriod month($months = 1) Alias for months().
 * @method static CarbonPeriod weeks($weeks = 1) Create instance specifying a number of weeks for date interval or replace the interval by the given a number of weeks if called on an instance.
 * @method static CarbonPeriod week($weeks = 1) Alias for weeks().
 * @method static CarbonPeriod days($days = 1) Create instance specifying a number of days for date interval or replace the interval by the given a number of days if called on an instance.
 * @method static CarbonPeriod dayz($days = 1) Alias for days().
 * @method static CarbonPeriod day($days = 1) Alias for days().
 * @method static CarbonPeriod hours($hours = 1) Create instance specifying a number of hours for date interval or replace the interval by the given a number of hours if called on an instance.
 * @method static CarbonPeriod hour($hours = 1) Alias for hours().
 * @method static CarbonPeriod minutes($minutes = 1) Create instance specifying a number of minutes for date interval or replace the interval by the given a number of minutes if called on an instance.
 * @method static CarbonPeriod minute($minutes = 1) Alias for minutes().
 * @method static CarbonPeriod seconds($seconds = 1) Create instance specifying a number of seconds for date interval or replace the interval by the given a number of seconds if called on an instance.
 * @method static CarbonPeriod second($seconds = 1) Alias for seconds().
 * @method $this roundYear(float $precision = 1, string $function = "round") Round the current instance year with given precision using the given function.
 * @method $this roundYears(float $precision = 1, string $function = "round") Round the current instance year with given precision using the given function.
 * @method $this floorYear(float $precision = 1) Truncate the current instance year with given precision.
 * @method $this floorYears(float $precision = 1) Truncate the current instance year with given precision.
 * @method $this ceilYear(float $precision = 1) Ceil the current instance year with given precision.
 * @method $this ceilYears(float $precision = 1) Ceil the current instance year with given precision.
 * @method $this roundMonth(float $precision = 1, string $function = "round") Round the current instance month with given precision using the given function.
 * @method $this roundMonths(float $precision = 1, string $function = "round") Round the current instance month with given precision using the given function.
 * @method $this floorMonth(float $precision = 1) Truncate the current instance month with given precision.
 * @method $this floorMonths(float $precision = 1) Truncate the current instance month with given precision.
 * @method $this ceilMonth(float $precision = 1) Ceil the current instance month with given precision.
 * @method $this ceilMonths(float $precision = 1) Ceil the current instance month with given precision.
 * @method $this roundWeek(float $precision = 1, string $function = "round") Round the current instance day with given precision using the given function.
 * @method $this roundWeeks(float $precision = 1, string $function = "round") Round the current instance day with given precision using the given function.
 * @method $this floorWeek(float $precision = 1) Truncate the current instance day with given precision.
 * @method $this floorWeeks(float $precision = 1) Truncate the current instance day with given precision.
 * @method $this ceilWeek(float $precision = 1) Ceil the current instance day with given precision.
 * @method $this ceilWeeks(float $precision = 1) Ceil the current instance day with given precision.
 * @method $this roundDay(float $precision = 1, string $function = "round") Round the current instance day with given precision using the given function.
 * @method $this roundDays(float $precision = 1, string $function = "round") Round the current instance day with given precision using the given function.
 * @method $this floorDay(float $precision = 1) Truncate the current instance day with given precision.
 * @method $this floorDays(float $precision = 1) Truncate the current instance day with given precision.
 * @method $this ceilDay(float $precision = 1) Ceil the current instance day with given precision.
 * @method $this ceilDays(float $precision = 1) Ceil the current instance day with given precision.
 * @method $this roundHour(float $precision = 1, string $function = "round") Round the current instance hour with given precision using the given function.
 * @method $this roundHours(float $precision = 1, string $function = "round") Round the current instance hour with given precision using the given function.
 * @method $this floorHour(float $precision = 1) Truncate the current instance hour with given precision.
 * @method $this floorHours(float $precision = 1) Truncate the current instance hour with given precision.
 * @method $this ceilHour(float $precision = 1) Ceil the current instance hour with given precision.
 * @method $this ceilHours(float $precision = 1) Ceil the current instance hour with given precision.
 * @method $this roundMinute(float $precision = 1, string $function = "round") Round the current instance minute with given precision using the given function.
 * @method $this roundMinutes(float $precision = 1, string $function = "round") Round the current instance minute with given precision using the given function.
 * @method $this floorMinute(float $precision = 1) Truncate the current instance minute with given precision.
 * @method $this floorMinutes(float $precision = 1) Truncate the current instance minute with given precision.
 * @method $this ceilMinute(float $precision = 1) Ceil the current instance minute with given precision.
 * @method $this ceilMinutes(float $precision = 1) Ceil the current instance minute with given precision.
 * @method $this roundSecond(float $precision = 1, string $function = "round") Round the current instance second with given precision using the given function.
 * @method $this roundSeconds(float $precision = 1, string $function = "round") Round the current instance second with given precision using the given function.
 * @method $this floorSecond(float $precision = 1) Truncate the current instance second with given precision.
 * @method $this floorSeconds(float $precision = 1) Truncate the current instance second with given precision.
 * @method $this ceilSecond(float $precision = 1) Ceil the current instance second with given precision.
 * @method $this ceilSeconds(float $precision = 1) Ceil the current instance second with given precision.
 * @method $this roundMillennium(float $precision = 1, string $function = "round") Round the current instance millennium with given precision using the given function.
 * @method $this roundMillennia(float $precision = 1, string $function = "round") Round the current instance millennium with given precision using the given function.
 * @method $this floorMillennium(float $precision = 1) Truncate the current instance millennium with given precision.
 * @method $this floorMillennia(float $precision = 1) Truncate the current instance millennium with given precision.
 * @method $this ceilMillennium(float $precision = 1) Ceil the current instance millennium with given precision.
 * @method $this ceilMillennia(float $precision = 1) Ceil the current instance millennium with given precision.
 * @method $this roundCentury(float $precision = 1, string $function = "round") Round the current instance century with given precision using the given function.
 * @method $this roundCenturies(float $precision = 1, string $function = "round") Round the current instance century with given precision using the given function.
 * @method $this floorCentury(float $precision = 1) Truncate the current instance century with given precision.
 * @method $this floorCenturies(float $precision = 1) Truncate the current instance century with given precision.
 * @method $this ceilCentury(float $precision = 1) Ceil the current instance century with given precision.
 * @method $this ceilCenturies(float $precision = 1) Ceil the current instance century with given precision.
 * @method $this roundDecade(float $precision = 1, string $function = "round") Round the current instance decade with given precision using the given function.
 * @method $this roundDecades(float $precision = 1, string $function = "round") Round the current instance decade with given precision using the given function.
 * @method $this floorDecade(float $precision = 1) Truncate the current instance decade with given precision.
 * @method $this floorDecades(float $precision = 1) Truncate the current instance decade with given precision.
 * @method $this ceilDecade(float $precision = 1) Ceil the current instance decade with given precision.
 * @method $this ceilDecades(float $precision = 1) Ceil the current instance decade with given precision.
 * @method $this roundQuarter(float $precision = 1, string $function = "round") Round the current instance quarter with given precision using the given function.
 * @method $this roundQuarters(float $precision = 1, string $function = "round") Round the current instance quarter with given precision using the given function.
 * @method $this floorQuarter(float $precision = 1) Truncate the current instance quarter with given precision.
 * @method $this floorQuarters(float $precision = 1) Truncate the current instance quarter with given precision.
 * @method $this ceilQuarter(float $precision = 1) Ceil the current instance quarter with given precision.
 * @method $this ceilQuarters(float $precision = 1) Ceil the current instance quarter with given precision.
 * @method $this roundMillisecond(float $precision = 1, string $function = "round") Round the current instance millisecond with given precision using the given function.
 * @method $this roundMilliseconds(float $precision = 1, string $function = "round") Round the current instance millisecond with given precision using the given function.
 * @method $this floorMillisecond(float $precision = 1) Truncate the current instance millisecond with given precision.
 * @method $this floorMilliseconds(float $precision = 1) Truncate the current instance millisecond with given precision.
 * @method $this ceilMillisecond(float $precision = 1) Ceil the current instance millisecond with given precision.
 * @method $this ceilMilliseconds(float $precision = 1) Ceil the current instance millisecond with given precision.
 * @method $this roundMicrosecond(float $precision = 1, string $function = "round") Round the current instance microsecond with given precision using the given function.
 * @method $this roundMicroseconds(float $precision = 1, string $function = "round") Round the current instance microsecond with given precision using the given function.
 * @method $this floorMicrosecond(float $precision = 1) Truncate the current instance microsecond with given precision.
 * @method $this floorMicroseconds(float $precision = 1) Truncate the current instance microsecond with given precision.
 * @method $this ceilMicrosecond(float $precision = 1) Ceil the current instance microsecond with given precision.
 * @method $this ceilMicroseconds(float $precision = 1) Ceil the current instance microsecond with given precision.
 */
class CarbonPeriod implements Iterator, Countable, JsonSerializable
{
    use IntervalRounding;
    use Mixin {
        Mixin::mixin as baseMixin;
    }
    use Options;

/**
     * Built-in filters.
     *
     * @var string
     */
    public const RECURRENCES_FILTER = [self::class, 'filterRecurrences'];
    public const END_DATE_FILTER = [self::class, 'filterEndDate'];

/**
     * Special value which can be returned by filters to end iteration. Also a filter.
     *
     * @var string
     */
    public const END_ITERATION = [self::class, 'endIteration'];

/**
     * Exclude start date from iteration.
     *
     * @var int
     */
    public const EXCLUDE_START_DATE = 1;

/**
     * Exclude end date from iteration.
     *
     * @var int
     */
    public const EXCLUDE_END_DATE = 2;

/**
     * Yield CarbonImmutable instances.
     *
     * @var int
     */
    public const IMMUTABLE = 4;

/**
     * Number of maximum attempts before giving up on finding next valid date.
     *
     * @var int
     */
    public const NEXT_MAX_ATTEMPTS = 1000;

/**
     * Number of maximum attempts before giving up on finding end date.
     *
     * @var int
     */
    public const END_MAX_ATTEMPTS = 10000;

/**
     * The registered macros.
     *
     * @var array
     */
    protected static $macros = [];

/**
     * Date class of iteration items.
     *
     * @var string
     */
    protected $dateClass = Carbon::class;

/**
     * Underlying date interval instance. Always present, one day by default.
     *
     * @var CarbonInterval
     */
    protected $dateInterval;

/**
     * Whether current date interval was set by default.
     *
     * @var bool
     */
    protected $isDefaultInterval;

/**
     * The filters stack.
     *
     * @var array
     */
    protected $filters = [];

/**
     * Period start date. Applied on rewind. Always present, now by default.
     *
     * @var CarbonInterface
     */
    protected $startDate;

/**
     * Period end date. For inverted interval should be before the start date. Applied via a filter.
     *
     * @var CarbonInterface|null
     */
    protected $endDate;

/**
     * Limit for number of recurrences. Applied via a filter.
     *
     * @var int|null
     */
    protected $recurrences;

/**
     * Iteration options.
     *
     * @var int
     */
    protected $options;

/**
     * Index of current date. Always sequential, even if some dates are skipped by filters.
     * Equal to null only before the first iteration.
     *
     * @var int
     */
    protected $key;

/**
     * Current date. May temporarily hold unaccepted value when looking for a next valid date.
     * Equal to null only before the first iteration.
     *
     * @var CarbonInterface
     */
    protected $current;

/**
     * Timezone of current date. Taken from the start date.
     *
     * @var \DateTimeZone|null
     */
    protected $timezone;

/**
     * The cached validation result for current date.
     *
     * @var bool|string|null
     */
    protected $validationResult;

/**
     * Timezone handler for settings() method.
     *
     * @var mixed
     */
    protected $tzName;

/**
     * Make a CarbonPeriod instance from given variable if possible.
     *
     * @param mixed $var
     *
     * @return static|null
     */
    public static function make($var)
    {
        try {
            return static::instance($var);
        } catch (NotAPeriodException $e) {
            return static::create($var);
        }
    }

/**
     * Create a new instance from a DatePeriod or CarbonPeriod object.
     *
     * @param CarbonPeriod|DatePeriod $period
     *
     * @return static
     */
    public static function instance($period)
    {
        if ($period instanceof static) {
            return $period->copy();
        }

if ($period instanceof self) {
            return new static(
                $period->getStartDate(),
                $period->getEndDate() ?: $period->getRecurrences(),
                $period->getDateInterval(),
                $period->getOptions()
            );
        }

if ($period instanceof DatePeriod) {
            return new static(
                $period->start,
                $period->end ?: ($period->recurrences - 1),
                $period->interval,
                $period->include_start_date ? 0 : static::EXCLUDE_START_DATE
            );
        }

$class = \get_called_class();
        $type = \gettype($period);

throw new NotAPeriodException(
            'Argument 1 passed to '.$class.'::'.__METHOD__.'() '.
            'must be an instance of DatePeriod or '.$class.', '.
            ($type === 'object' ? 'instance of '.\get_class($period) : $type).' given.'
        );
    }

/**
     * Create a new instance.
     *
     * @return static
     */
    public static function create(...$params)
    {
        return static::createFromArray($params);
    }

/**
     * Create a new instance from an array of parameters.
     *
     * @param array $params
     *
     * @return static
     */
    public static function createFromArray(array $params)
    {
        return new static(...$params);
    }

/**
     * Create CarbonPeriod from ISO 8601 string.
     *
     * @param string   $iso
     * @param int|null $options
     *
     * @return static
     */
    public static function createFromIso($iso, $options = null)
    {
        $params = static::parseIso8601($iso);

$instance = static::createFromArray($params);

if ($options !== null) {
            $instance->setOptions($options);
        }

return $instance;
    }

/**
     * Return whether given interval contains non zero value of any time unit.
     *
     * @param \DateInterval $interval
     *
     * @return bool
     */
    protected static function intervalHasTime(DateInterval $interval)
    {
        return $interval->h || $interval->i || $interval->s || $interval->f;
    }

/**
     * Return whether given variable is an ISO 8601 specification.
     *
     * Note: Check is very basic, as actual validation will be done later when parsing.
     * We just want to ensure that variable is not any other type of a valid parameter.
     *
     * @param mixed $var
     *
     * @return bool
     */
    protected static function isIso8601($var)
    {
        if (!\is_string($var)) {
            return false;
        }

// Match slash but not within a timezone name.
        $part = '[a-z]+(?:[_-][a-z]+)*';

preg_match("#\b$part/$part\b|(/)#i", $var, $match);

return isset($match[1]);
    }

/**
     * Parse given ISO 8601 string into an array of arguments.
     *
     * @SuppressWarnings(PHPMD.ElseExpression)
     *
     * @param string $iso
     *
     * @return array
     */
    protected static function parseIso8601($iso)
    {
        $result = [];

$interval = null;
        $start = null;
        $end = null;

foreach (explode('/', $iso) as $key => $part) {
            if ($key === 0 && preg_match('/^R([0-9]*)$/', $part, $match)) {
                $parsed = \strlen($match[1]) ? (int) $match[1] : null;
            } elseif ($interval === null && $parsed = CarbonInterval::make($part)) {
                $interval = $part;
            } elseif ($start === null && $parsed = Carbon::make($part)) {
                $start = $part;
            } elseif ($end === null && $parsed = Carbon::make(static::addMissingParts($start ?? '', $part))) {
                $end = $part;
            } else {
                throw new InvalidPeriodParameterException("Invalid ISO 8601 specification: $iso.");
            }

$result[] = $parsed;
        }

return $result;
    }

/**
     * Add missing parts of the target date from the soure date.
     *
     * @param string $source
     * @param string $target
     *
     * @return string
     */
    protected static function addMissingParts($source, $target)
    {
        $pattern = '/'.preg_replace('/[0-9]+/', '[0-9]+', preg_quote($target, '/')).'$/';

$result = preg_replace($pattern, $target, $source, 1, $count);

return $count ? $result : $target;
    }

/**
     * Register a custom macro.
     *
     * @example
     * ```
     * CarbonPeriod::macro('middle', function () {
     *   return $this->getStartDate()->average($this->getEndDate());
     * });
     * echo CarbonPeriod::since('2011-05-12')->until('2011-06-03')->middle();
     * ```
     *
     * @param string          $name
     * @param object|callable $macro
     *
     * @return void
     */
    public static function macro($name, $macro)
    {
        static::$macros[$name] = $macro;
    }

/**
     * Register macros from a mixin object.
     *
     * @example
     * ```
     * CarbonPeriod::mixin(new class {
     *   public function addDays() {
     *     return function ($count = 1) {
     *       return $this->setStartDate(
     *         $this->getStartDate()->addDays($count)
     *       )->setEndDate(
     *         $this->getEndDate()->addDays($count)
     *       );
     *     };
     *   }
     *   public function subDays() {
     *     return function ($count = 1) {
     *       return $this->setStartDate(
     *         $this->getStartDate()->subDays($count)
     *       )->setEndDate(
     *         $this->getEndDate()->subDays($count)
     *       );
     *     };
     *   }
     * });
     * echo CarbonPeriod::create('2000-01-01', '2000-02-01')->addDays(5)->subDays(3);
     * ```
     *
     * @param object|string $mixin
     *
     * @throws ReflectionException
     *
     * @return void
     */
    public static function mixin($mixin)
    {
        static::baseMixin($mixin);
    }

/**
     * Check if macro is registered.
     *
     * @param string $name
     *
     * @return bool
     */
    public static function hasMacro($name)
    {
        return isset(static::$macros[$name]);
    }

/**
     * Provide static proxy for instance aliases.
     *
     * @param string $method
     * @param array  $parameters
     *
     * @return mixed
     */
    public static function __callStatic($method, $parameters)
    {
        $date = new static();

if (static::hasMacro($method)) {
            return static::bindMacroContext(null, function () use (&$method, &$parameters, &$date) {
                return $date->callMacro($method, $parameters);
            });
        }

return $date->$method(...$parameters);
    }

/**
     * CarbonPeriod constructor.
     *
     * @SuppressWarnings(PHPMD.ElseExpression)
     *
     * @throws InvalidArgumentException
     */
    public function __construct(...$arguments)
    {
        // Parse and assign arguments one by one. First argument may be an ISO 8601 spec,
        // which will be first parsed into parts and then processed the same way.

$argumentsCount = \count($arguments);

if ($argumentsCount && static::isIso8601($iso = $arguments[0])) {
            array_splice($arguments, 0, 1, static::parseIso8601($iso));
        }

if ($argumentsCount === 1) {
            if ($arguments[0] instanceof DatePeriod) {
                $arguments = [
                    $arguments[0]->start,
                    $arguments[0]->end ?: ($arguments[0]->recurrences - 1),
                    $arguments[0]->interval,
                    $arguments[0]->include_start_date ? 0 : static::EXCLUDE_START_DATE,
                ];
            } elseif ($arguments[0] instanceof self) {
                $arguments = [
                    $arguments[0]->getStartDate(),
                    $arguments[0]->getEndDate() ?: $arguments[0]->getRecurrences(),
                    $arguments[0]->getDateInterval(),
                    $arguments[0]->getOptions(),
                ];
            }
        }

foreach ($arguments as $argument) {
            if ($this->dateInterval === null &&
                (
                    \is_string($argument) && preg_match(
                        '/^(-?\d(\d(?![\/-])|[^\d\/-]([\/-])?)*|P[T0-9].*|(?:\h*\d+(?:\.\d+)?\h*[a-z]+)+)$/i',
                        $argument
                    ) ||
                    $argument instanceof DateInterval ||
                    $argument instanceof Closure
                ) &&
                $parsed = @CarbonInterval::make($argument)
            ) {
                $this->setDateInterval($parsed);
            } elseif ($this->startDate === null && $parsed = Carbon::make($argument)) {
                $this->setStartDate($parsed);
            } elseif ($this->endDate === null && $parsed = Carbon::make($argument)) {
                $this->setEndDate($parsed);
            } elseif ($this->recurrences === null && $this->endDate === null && is_numeric($argument)) {
                $this->setRecurrences($argument);
            } elseif ($this->options === null && (\is_int($argument) || $argument === null)) {
                $this->setOptions($argument);
            } else {
                throw new InvalidPeriodParameterException('Invalid constructor parameters.');
            }
        }

if ($this->startDate === null) {
            $this->setStartDate(Carbon::now());
        }

if ($this->dateInterval === null) {
            $this->setDateInterval(CarbonInterval::day());

$this->isDefaultInterval = true;
        }

if ($this->options === null) {
            $this->setOptions(0);
        }
    }

/**
     * Get a copy of the instance.
     *
     * @return static
     */
    public function copy()
    {
        return clone $this;
    }

/**
     * Get the getter for a property allowing both `DatePeriod` snakeCase and camelCase names.
     *
     * @param string $name
     *
     * @return callable|null
     */
    protected function getGetter(string $name)
    {
        switch (strtolower(preg_replace('/[A-Z]/', '_$0', $name))) {
            case 'start':
            case 'start_date':
                return [$this, 'getStartDate'];
            case 'end':
            case 'end_date':
                return [$this, 'getEndDate'];
            case 'interval':
            case 'date_interval':
                return [$this, 'getDateInterval'];
            case 'recurrences':
                return [$this, 'getRecurrences'];
            case 'include_start_date':
                return [$this, 'isStartIncluded'];
            case 'include_end_date':
                return [$this, 'isEndIncluded'];
            case 'current':
                return [$this, 'current'];
            default:
                return null;
        }
    }

/**
     * Get a property allowing both `DatePeriod` snakeCase and camelCase names.
     *
     * @param string $name
     *
     * @return bool|CarbonInterface|CarbonInterval|int|null
     */
    public function get(string $name)
    {
        $getter = $this->getGetter($name);

if ($getter) {
            return $getter();
        }

throw new UnknownGetterException($name);
    }

/**
     * Get a property allowing both `DatePeriod` snakeCase and camelCase names.
     *
     * @param string $name
     *
     * @return bool|CarbonInterface|CarbonInterval|int|null
     */
    public function __get(string $name)
    {
        return $this->get($name);
    }

/**
     * Check if an attribute exists on the object
     *
     * @param string $name
     *
     * @return bool
     */
    public function __isset(string $name): bool
    {
        return $this->getGetter($name) !== null;
    }

/**
     * @alias copy
     *
     * Get a copy of the instance.
     *
     * @return static
     */
    public function clone()
    {
        return clone $this;
    }

/**
     * Set the iteration item class.
     *
     * @param string $dateClass
     *
     * @return $this
     */
    public function setDateClass(string $dateClass)
    {
        if (!is_a($dateClass, CarbonInterface::class, true)) {
            throw new NotACarbonClassException($dateClass);
        }

$this->dateClass = $dateClass;

if (is_a($dateClass, Carbon::class, true)) {
            $this->toggleOptions(static::IMMUTABLE, false);
        } elseif (is_a($dateClass, CarbonImmutable::class, true)) {
            $this->toggleOptions(static::IMMUTABLE, true);
        }

return $this;
    }

/**
     * Returns iteration item date class.
     *
     * @return string
     */
    public function getDateClass(): string
    {
        return $this->dateClass;
    }

/**
     * Change the period date interval.
     *
     * @param DateInterval|string $interval
     *
     * @throws InvalidIntervalException
     *
     * @return $this
     */
    public function setDateInterval($interval)
    {
        if (!$interval = CarbonInterval::make($interval)) {
            throw new InvalidIntervalException('Invalid interval.');
        }

if ($interval->spec() === 'PT0S' && !$interval->f && !$interval->getStep()) {
            throw new InvalidIntervalException('Empty interval is not accepted.');
        }

$this->dateInterval = $interval;

$this->isDefaultInterval = false;

$this->handleChangedParameters();

return $this;
    }

/**
     * Invert the period date interval.
     *
     * @return $this
     */
    public function invertDateInterval()
    {
        $interval = $this->dateInterval->invert();

return $this->setDateInterval($interval);
    }

/**
     * Set start and end date.
     *
     * @param DateTime|DateTimeInterface|string      $start
     * @param DateTime|DateTimeInterface|string|null $end
     *
     * @return $this
     */
    public function setDates($start, $end)
    {
        $this->setStartDate($start);
        $this->setEndDate($end);

return $this;
    }

/**
     * Change the period options.
     *
     * @param int|null $options
     *
     * @throws InvalidArgumentException
     *
     * @return $this
     */
    public function setOptions($options)
    {
        if (!\is_int($options) && !\is_null($options)) {
            throw new InvalidPeriodParameterException('Invalid options.');
        }

$this->options = $options ?: 0;

$this->handleChangedParameters();

return $this;
    }

/**
     * Get the period options.
     *
     * @return int
     */
    public function getOptions()
    {
        return $this->options;
    }

/**
     * Toggle given options on or off.
     *
     * @param int       $options
     * @param bool|null $state
     *
     * @throws \InvalidArgumentException
     *
     * @return $this
     */
    public function toggleOptions($options, $state = null)
    {
        if ($state === null) {
            $state = ($this->options & $options) !== $options;
        }

return $this->setOptions(
            $state ?
            $this->options | $options :
            $this->options & ~$options
        );
    }

/**
     * Toggle EXCLUDE_START_DATE option.
     *
     * @param bool $state
     *
     * @return $this
     */
    public function excludeStartDate($state = true)
    {
        return $this->toggleOptions(static::EXCLUDE_START_DATE, $state);
    }

/**
     * Toggle EXCLUDE_END_DATE option.
     *
     * @param bool $state
     *
     * @return $this
     */
    public function excludeEndDate($state = true)
    {
        return $this->toggleOptions(static::EXCLUDE_END_DATE, $state);
    }

/**
     * Get the underlying date interval.
     *
     * @return CarbonInterval
     */
    public function getDateInterval()
    {
        return $this->dateInterval->copy();
    }

/**
     * Get start date of the period.
     *
     * @param string|null $rounding Optional rounding 'floor', 'ceil', 'round' using the period interval.
     *
     * @return CarbonInterface
     */
    public function getStartDate(string $rounding = null)
    {
        $date = $this->startDate->avoidMutation();

return $rounding ? $date->round($this->getDateInterval(), $rounding) : $date;
    }

/**
     * Get end date of the period.
     *
     * @param string|null $rounding Optional rounding 'floor', 'ceil', 'round' using the period interval.
     *
     * @return CarbonInterface|null
     */
    public function getEndDate(string $rounding = null)
    {
        if (!$this->endDate) {
            return null;
        }

$date = $this->endDate->avoidMutation();

return $rounding ? $date->round($this->getDateInterval(), $rounding) : $date;
    }

/**
     * Get number of recurrences.
     *
     * @return int|float|null
     */
    public function getRecurrences()
    {
        return $this->recurrences;
    }

/**
     * Returns true if the start date should be excluded.
     *
     * @return bool
     */
    public function isStartExcluded()
    {
        return ($this->options & static::EXCLUDE_START_DATE) !== 0;
    }

/**
     * Returns true if the end date should be excluded.
     *
     * @return bool
     */
    public function isEndExcluded()
    {
        return ($this->options & static::EXCLUDE_END_DATE) !== 0;
    }

/**
     * Returns true if the start date should be included.
     *
     * @return bool
     */
    public function isStartIncluded()
    {
        return !$this->isStartExcluded();
    }

/**
     * Returns true if the end date should be included.
     *
     * @return bool
     */
    public function isEndIncluded()
    {
        return !$this->isEndExcluded();
    }

/**
     * Return the start if it's included by option, else return the start + 1 period interval.
     *
     * @return CarbonInterface
     */
    public function getIncludedStartDate()
    {
        $start = $this->getStartDate();

if ($this->isStartExcluded()) {
            return $start->add($this->getDateInterval());
        }

return $start;
    }

/**
     * Return the end if it's included by option, else return the end - 1 period interval.
     * Warning: if the period has no fixed end, this method will iterate the period to calculate it.
     *
     * @return CarbonInterface
     */
    public function getIncludedEndDate()
    {
        $end = $this->getEndDate();

if (!$end) {
            return $this->calculateEnd();
        }

if ($this->isEndExcluded()) {
            return $end->sub($this->getDateInterval());
        }

return $end;
    }

/**
     * Add a filter to the stack.
     *
     * @SuppressWarnings(PHPMD.UnusedFormalParameter)
     *
     * @param callable $callback
     * @param string   $name
     *
     * @return $this
     */
    public function addFilter($callback, $name = null)
    {
        $tuple = $this->createFilterTuple(\func_get_args());

$this->filters[] = $tuple;

$this->handleChangedParameters();

return $this;
    }

/**
     * Prepend a filter to the stack.
     *
     * @SuppressWarnings(PHPMD.UnusedFormalParameter)
     *
     * @param callable $callback
     * @param string   $name
     *
     * @return $this
     */
    public function prependFilter($callback, $name = null)
    {
        $tuple = $this->createFilterTuple(\func_get_args());

array_unshift($this->filters, $tuple);

$this->handleChangedParameters();

return $this;
    }

/**
     * Remove a filter by instance or name.
     *
     * @param callable|string $filter
     *
     * @return $this
     */
    public function removeFilter($filter)
    {
        $key = \is_callable($filter) ? 0 : 1;

$this->filters = array_values(array_filter(
            $this->filters,
            function ($tuple) use ($key, $filter) {
                return $tuple[$key] !== $filter;
            }
        ));

$this->updateInternalState();

$this->handleChangedParameters();

return $this;
    }

/**
     * Return whether given instance or name is in the filter stack.
     *
     * @param callable|string $filter
     *
     * @return bool
     */
    public function hasFilter($filter)
    {
        $key = \is_callable($filter) ? 0 : 1;

foreach ($this->filters as $tuple) {
            if ($tuple[$key] === $filter) {
                return true;
            }
        }

return false;
    }

/**
     * Get filters stack.
     *
     * @return array
     */
    public function getFilters()
    {
        return $this->filters;
    }

/**
     * Set filters stack.
     *
     * @param array $filters
     *
     * @return $this
     */
    public function setFilters(array $filters)
    {
        $this->filters = $filters;

$this->updateInternalState();

$this->handleChangedParameters();

return $this;
    }

/**
     * Reset filters stack.
     *
     * @return $this
     */
    public function resetFilters()
    {
        $this->filters = [];

if ($this->endDate !== null) {
            $this->filters[] = [static::END_DATE_FILTER, null];
        }

if ($this->recurrences !== null) {
            $this->filters[] = [static::RECURRENCES_FILTER, null];
        }

$this->handleChangedParameters();

return $this;
    }

/**
     * Add a recurrences filter (set maximum number of recurrences).
     *
     * @param int|float|null $recurrences
     *
     * @throws InvalidArgumentException
     *
     * @return $this
     */
    public function setRecurrences($recurrences)
    {
        if (!is_numeric($recurrences) && !\is_null($recurrences) || $recurrences < 0) {
            throw new InvalidPeriodParameterException('Invalid number of recurrences.');
        }

if ($recurrences === null) {
            return $this->removeFilter(static::RECURRENCES_FILTER);
        }

$this->recurrences = $recurrences === INF ? INF : (int) $recurrences;

if (!$this->hasFilter(static::RECURRENCES_FILTER)) {
            return $this->addFilter(static::RECURRENCES_FILTER);
        }

$this->handleChangedParameters();

return $this;
    }

/**
     * Change the period start date.
     *
     * @param DateTime|DateTimeInterface|string $date
     * @param bool|null                         $inclusive
     *
     * @throws InvalidPeriodDateException
     *
     * @return $this
     */
    public function setStartDate($date, $inclusive = null)
    {
        if (!$date = ([$this->dateClass, 'make'])($date)) {
            throw new InvalidPeriodDateException('Invalid start date.');
        }

$this->startDate = $date;

if ($inclusive !== null) {
            $this->toggleOptions(static::EXCLUDE_START_DATE, !$inclusive);
        }

return $this;
    }

/**
     * Change the period end date.
     *
     * @param DateTime|DateTimeInterface|string|null $date
     * @param bool|null                              $inclusive
     *
     * @throws \InvalidArgumentException
     *
     * @return $this
     */
    public function setEndDate($date, $inclusive = null)
    {
        if (!\is_null($date) && !$date = ([$this->dateClass, 'make'])($date)) {
            throw new InvalidPeriodDateException('Invalid end date.');
        }

if (!$date) {
            return $this->removeFilter(static::END_DATE_FILTER);
        }

$this->endDate = $date;

if ($inclusive !== null) {
            $this->toggleOptions(static::EXCLUDE_END_DATE, !$inclusive);
        }

if (!$this->hasFilter(static::END_DATE_FILTER)) {
            return $this->addFilter(static::END_DATE_FILTER);
        }

$this->handleChangedParameters();

return $this;
    }

/**
     * Check if the current position is valid.
     *
     * @return bool
     */
    public function valid()
    {
        return $this->validateCurrentDate() === true;
    }

/**
     * Return the current key.
     *
     * @return int|null
     */
    public function key()
    {
        return $this->valid()
            ? $this->key
            : null;
    }

/**
     * Return the current date.
     *
     * @return CarbonInterface|null
     */
    public function current()
    {
        return $this->valid()
            ? $this->prepareForReturn($this->current)
            : null;
    }

/**
     * Move forward to the next date.
     *
     * @throws RuntimeException
     *
     * @return void
     */
    public function next()
    {
        if ($this->current === null) {
            $this->rewind();
        }

if ($this->validationResult !== static::END_ITERATION) {
            $this->key++;

$this->incrementCurrentDateUntilValid();
        }
    }

/**
     * Rewind to the start date.
     *
     * Iterating over a date in the UTC timezone avoids bug during backward DST change.
     *
     * @see https://bugs.php.net/bug.php?id=72255
     * @see https://bugs.php.net/bug.php?id=74274
     * @see https://wiki.php.net/rfc/datetime_and_daylight_saving_time
     *
     * @throws RuntimeException
     *
     * @return void
     */
    public function rewind()
    {
        $this->key = 0;
        $this->current = ([$this->dateClass, 'make'])($this->startDate);
        $settings = $this->getSettings();

if ($this->hasLocalTranslator()) {
            $settings['locale'] = $this->getTranslatorLocale();
        }

$this->current->settings($settings);
        $this->timezone = static::intervalHasTime($this->dateInterval) ? $this->current->getTimezone() : null;

if ($this->timezone) {
            $this->current = $this->current->utc();
        }

$this->validationResult = null;

if ($this->isStartExcluded() || $this->validateCurrentDate() === false) {
            $this->incrementCurrentDateUntilValid();
        }
    }

/**
     * Skip iterations and returns iteration state (false if ended, true if still valid).
     *
     * @param int $count steps number to skip (1 by default)
     *
     * @return bool
     */
    public function skip($count = 1)
    {
        for ($i = $count; $this->valid() && $i > 0; $i--) {
            $this->next();
        }

return $this->valid();
    }

/**
     * Format the date period as ISO 8601.
     *
     * @return string
     */
    public function toIso8601String()
    {
        $parts = [];

if ($this->recurrences !== null) {
            $parts[] = 'R'.$this->recurrences;
        }

$parts[] = $this->startDate->toIso8601String();

$parts[] = $this->dateInterval->spec();

if ($this->endDate !== null) {
            $parts[] = $this->endDate->toIso8601String();
        }

return implode('/', $parts);
    }

/**
     * Convert the date period into a string.
     *
     * @return string
     */
    public function toString()
    {
        $translator = ([$this->dateClass, 'getTranslator'])();

$parts = [];

$format = !$this->startDate->isStartOfDay() || $this->endDate && !$this->endDate->isStartOfDay()
            ? 'Y-m-d H:i:s'
            : 'Y-m-d';

if ($this->recurrences !== null) {
            $parts[] = $this->translate('period_recurrences', [], $this->recurrences, $translator);
        }

$parts[] = $this->translate('period_interval', [':interval' => $this->dateInterval->forHumans([
            'join' => true,
        ])], null, $translator);

$parts[] = $this->translate('period_start_date', [':date' => $this->startDate->rawFormat($format)], null, $translator);

if ($this->endDate !== null) {
            $parts[] = $this->translate('period_end_date', [':date' => $this->endDate->rawFormat($format)], null, $translator);
        }

$result = implode(' ', $parts);

return mb_strtoupper(mb_substr($result, 0, 1)).mb_substr($result, 1);
    }

/**
     * Format the date period as ISO 8601.
     *
     * @return string
     */
    public function spec()
    {
        return $this->toIso8601String();
    }

/**
     * Cast the current instance into the given class.
     *
     * @param string $className The $className::instance() method will be called to cast the current object.
     *
     * @return DatePeriod
     */
    public function cast(string $className)
    {
        if (!method_exists($className, 'instance')) {
            if (is_a($className, DatePeriod::class, true)) {
                return new $className(
                    $this->getStartDate(),
                    $this->getDateInterval(),
                    $this->getEndDate() ? $this->getIncludedEndDate() : $this->getRecurrences(),
                    $this->isStartExcluded() ? DatePeriod::EXCLUDE_START_DATE : 0
                );
            }

throw new InvalidCastException("$className has not the instance() method needed to cast the date.");
        }

return $className::instance($this);
    }

/**
     * Return native DatePeriod PHP object matching the current instance.
     *
     * @example
     * ```
     * var_dump(CarbonPeriod::create('2021-01-05', '2021-02-15')->toDatePeriod());
     * ```
     *
     * @return DatePeriod
     */
    public function toDatePeriod()
    {
        return $this->cast(DatePeriod::class);
    }

/**
     * Convert the date period into an array without changing current iteration state.
     *
     * @return CarbonInterface[]
     */
    public function toArray()
    {
        $state = [
            $this->key,
            $this->current ? $this->current->avoidMutation() : null,
            $this->validationResult,
        ];

$result = iterator_to_array($this);

[$this->key, $this->current, $this->validationResult] = $state;

return $result;
    }

/**
     * Count dates in the date period.
     *
     * @return int
     */
    public function count()
    {
        return \count($this->toArray());
    }

/**
     * Return the first date in the date period.
     *
     * @return CarbonInterface|null
     */
    public function first()
    {
        return ($this->toArray() ?: [])[0] ?? null;
    }

/**
     * Return the last date in the date period.
     *
     * @return CarbonInterface|null
     */
    public function last()
    {
        $array = $this->toArray();

return $array ? $array[\count($array) - 1] : null;
    }

/**
     * Convert the date period into a string.
     *
     * @return string
     */
    public function __toString()
    {
        return $this->toString();
    }

/**
     * Add aliases for setters.
     *
     * CarbonPeriod::days(3)->hours(5)->invert()
     *     ->sinceNow()->until('2010-01-10')
     *     ->filter(...)
     *     ->count()
     *
     * Note: We use magic method to let static and instance aliases with the same names.
     *
     * @param string $method
     * @param array  $parameters
     *
     * @return mixed
     */
    public function __call($method, $parameters)
    {
        if (static::hasMacro($method)) {
            return static::bindMacroContext($this, function () use (&$method, &$parameters) {
                return $this->callMacro($method, $parameters);
            });
        }

$roundedValue = $this->callRoundMethod($method, $parameters);

if ($roundedValue !== null) {
            return $roundedValue;
        }

$first = \count($parameters) >= 1 ? $parameters[0] : null;
        $second = \count($parameters) >= 2 ? $parameters[1] : null;

switch ($method) {
            case 'start':
            case 'since':
                return $this->setStartDate($first, $second);

case 'sinceNow':
                return $this->setStartDate(new Carbon, $first);

case 'end':
            case 'until':
                return $this->setEndDate($first, $second);

case 'untilNow':
                return $this->setEndDate(new Carbon, $first);

case 'dates':
            case 'between':
                return $this->setDates($first, $second);

case 'recurrences':
            case 'times':
                return $this->setRecurrences($first);

case 'options':
                return $this->setOptions($first);

case 'toggle':
                return $this->toggleOptions($first, $second);

case 'filter':
            case 'push':
                return $this->addFilter($first, $second);

case 'prepend':
                return $this->prependFilter($first, $second);

case 'filters':
                return $this->setFilters($first ?: []);

case 'interval':
            case 'each':
            case 'every':
            case 'step':
            case 'stepBy':
                return $this->setDateInterval($first);

case 'invert':
                return $this->invertDateInterval();

case 'years':
            case 'year':
            case 'months':
            case 'month':
            case 'weeks':
            case 'week':
            case 'days':
            case 'dayz':
            case 'day':
            case 'hours':
            case 'hour':
            case 'minutes':
            case 'minute':
            case 'seconds':
            case 'second':
                return $this->setDateInterval((
                    // Override default P1D when instantiating via fluent setters.
                    [$this->isDefaultInterval ? new CarbonInterval('PT0S') : $this->dateInterval, $method]
                )(
                    \count($parameters) === 0 ? 1 : $first
                ));
        }

if ($this->localStrictModeEnabled ?? Carbon::isStrictModeEnabled()) {
            throw new UnknownMethodException($method);
        }

return $this;
    }

/**
     * Set the instance's timezone from a string or object and add/subtract the offset difference.
     *
     * @param \DateTimeZone|string $timezone
     *
     * @return static
     */
    public function shiftTimezone($timezone)
    {
        $this->tzName = $timezone;
        $this->timezone = $timezone;

return $this;
    }

/**
     * Returns the end is set, else calculated from start an recurrences.
     *
     * @param string|null $rounding Optional rounding 'floor', 'ceil', 'round' using the period interval.
     *
     * @return CarbonInterface
     */
    public function calculateEnd(string $rounding = null)
    {
        if ($end = $this->getEndDate($rounding)) {
            return $end;
        }

if ($this->dateInterval->isEmpty()) {
            return $this->getStartDate($rounding);
        }

$date = $this->getEndFromRecurrences() ?? $this->iterateUntilEnd();

if ($date && $rounding) {
            $date = $date->avoidMutation()->round($this->getDateInterval(), $rounding);
        }

return $date;
    }

/**
     * @return CarbonInterface|null
     */
    private function getEndFromRecurrences()
    {
        if ($this->recurrences === null) {
            throw new UnreachableException(
                "Could not calculate period end without either explicit end or recurrences.\n".
                "If you're looking for a forever-period, use ->setRecurrences(INF)."
            );
        }

if ($this->recurrences === INF) {
            $start = $this->getStartDate();

return $start < $start->avoidMutation()->add($this->getDateInterval())
                ? CarbonImmutable::endOfTime()
                : CarbonImmutable::startOfTime();
        }

if ($this->filters === [[static::RECURRENCES_FILTER, null]]) {
            return $this->getStartDate()->avoidMutation()->add(
                $this->getDateInterval()->times(
                    $this->recurrences - ($this->isStartExcluded() ? 0 : 1)
                )
            );
        }

return null;
    }

/**
     * @return CarbonInterface|null
     */
    private function iterateUntilEnd()
    {
        $attempts = 0;
        $date = null;

foreach ($this as $date) {
            if (++$attempts > static::END_MAX_ATTEMPTS) {
                throw new UnreachableException(
                    'Could not calculate period end after iterating '.static::END_MAX_ATTEMPTS.' times.'
                );
            }
        }

return $date;
    }

/**
     * Returns true if the current period overlaps the given one (if 1 parameter passed)
     * or the period between 2 dates (if 2 parameters passed).
     *
     * @param CarbonPeriod|\DateTimeInterface|Carbon|CarbonImmutable|string $rangeOrRangeStart
     * @param \DateTimeInterface|Carbon|CarbonImmutable|string|null         $rangeEnd
     *
     * @return bool
     */
    public function overlaps($rangeOrRangeStart, $rangeEnd = null)
    {
        $range = $rangeEnd ? static::create($rangeOrRangeStart, $rangeEnd) : $rangeOrRangeStart;

if (!($range instanceof self)) {
            $range = static::create($range);
        }

[$start, $end] = $this->orderCouple($this->getStartDate(), $this->calculateEnd());
        [$rangeStart, $rangeEnd] = $this->orderCouple($range->getStartDate(), $range->calculateEnd());

return $end > $rangeStart && $rangeEnd > $start;
    }

/**
     * Execute a given function on each date of the period.
     *
     * @example
     * ```
     * Carbon::create('2020-11-29')->daysUntil('2020-12-24')->forEach(function (Carbon $date) {
     *   echo $date->diffInDays('2020-12-25')." days before Christmas!\n";
     * });
     * ```
     *
     * @param callable $callback
     */
    public function forEach(callable $callback)
    {
        foreach ($this as $date) {
            $callback($date);
        }
    }

/**
     * Execute a given function on each date of the period and yield the result of this function.
     *
     * @example
     * ```
     * $period = Carbon::create('2020-11-29')->daysUntil('2020-12-24');
     * echo implode("\n", iterator_to_array($period->map(function (Carbon $date) {
     *   return $date->diffInDays('2020-12-25').' days before Christmas!';
     * })));
     * ```
     *
     * @param callable $callback
     *
     * @return \Generator
     */
    public function map(callable $callback)
    {
        foreach ($this as $date) {
            yield $callback($date);
        }
    }

/**
     * Determines if the instance is equal to another.
     * Warning: if options differ, instances wil never be equal.
     *
     * @param mixed $period
     *
     * @see equalTo()
     *
     * @return bool
     */
    public function eq($period): bool
    {
        return $this->equalTo($period);
    }

/**
     * Determines if the instance is equal to another.
     * Warning: if options differ, instances wil never be equal.
     *
     * @param mixed $period
     *
     * @return bool
     */
    public function equalTo($period): bool
    {
        if (!($period instanceof self)) {
            $period = self::make($period);
        }

$end = $this->getEndDate();

return $period !== null
            && $this->getDateInterval()->eq($period->getDateInterval())
            && $this->getStartDate()->eq($period->getStartDate())
            && ($end ? $end->eq($period->getEndDate()) : $this->getRecurrences() === $period->getRecurrences())
            && ($this->getOptions() & (~static::IMMUTABLE)) === ($period->getOptions() & (~static::IMMUTABLE));
    }

/**
     * Determines if the instance is not equal to another.
     * Warning: if options differ, instances wil never be equal.
     *
     * @param mixed $period
     *
     * @see notEqualTo()
     *
     * @return bool
     */
    public function ne($period): bool
    {
        return $this->notEqualTo($period);
    }

/**
     * Determines if the instance is not equal to another.
     * Warning: if options differ, instances wil never be equal.
     *
     * @param mixed $period
     *
     * @return bool
     */
    public function notEqualTo($period): bool
    {
        return !$this->eq($period);
    }

/**
     * Determines if the start date is before an other given date.
     * (Rather start/end are included by options is ignored.)
     *
     * @param mixed $date
     *
     * @return bool
     */
    public function startsBefore($date = null): bool
    {
        return $this->getStartDate()->lessThan($this->resolveCarbon($date));
    }

/**
     * Determines if the start date is before or the same as a given date.
     * (Rather start/end are included by options is ignored.)
     *
     * @param mixed $date
     *
     * @return bool
     */
    public function startsBeforeOrAt($date = null): bool
    {
        return $this->getStartDate()->lessThanOrEqualTo($this->resolveCarbon($date));
    }

/**
     * Determines if the start date is after an other given date.
     * (Rather start/end are included by options is ignored.)
     *
     * @param mixed $date
     *
     * @return bool
     */
    public function startsAfter($date = null): bool
    {
        return $this->getStartDate()->greaterThan($this->resolveCarbon($date));
    }

/**
     * Determines if the start date is after or the same as a given date.
     * (Rather start/end are included by options is ignored.)
     *
     * @param mixed $date
     *
     * @return bool
     */
    public function startsAfterOrAt($date = null): bool
    {
        return $this->getStartDate()->greaterThanOrEqualTo($this->resolveCarbon($date));
    }

/**
     * Determines if the start date is the same as a given date.
     * (Rather start/end are included by options is ignored.)
     *
     * @param mixed $date
     *
     * @return bool
     */
    public function startsAt($date = null): bool
    {
        return $this->getStartDate()->equalTo($this->resolveCarbon($date));
    }

/**
     * Determines if the end date is before an other given date.
     * (Rather start/end are included by options is ignored.)
     *
     * @param mixed $date
     *
     * @return bool
     */
    public function endsBefore($date = null): bool
    {
        return $this->calculateEnd()->lessThan($this->resolveCarbon($date));
    }

/**
     * Determines if the end date is before or the same as a given date.
     * (Rather start/end are included by options is ignored.)
     *
     * @param mixed $date
     *
     * @return bool
     */
    public function endsBeforeOrAt($date = null): bool
    {
        return $this->calculateEnd()->lessThanOrEqualTo($this->resolveCarbon($date));
    }

/**
     * Determines if the end date is after an other given date.
     * (Rather start/end are included by options is ignored.)
     *
     * @param mixed $date
     *
     * @return bool
     */
    public function endsAfter($date = null): bool
    {
        return $this->calculateEnd()->greaterThan($this->resolveCarbon($date));
    }

/**
     * Determines if the end date is after or the same as a given date.
     * (Rather start/end are included by options is ignored.)
     *
     * @param mixed $date
     *
     * @return bool
     */
    public function endsAfterOrAt($date = null): bool
    {
        return $this->calculateEnd()->greaterThanOrEqualTo($this->resolveCarbon($date));
    }

/**
     * Determines if the end date is the same as a given date.
     * (Rather start/end are included by options is ignored.)
     *
     * @param mixed $date
     *
     * @return bool
     */
    public function endsAt($date = null): bool
    {
        return $this->calculateEnd()->equalTo($this->resolveCarbon($date));
    }

/**
     * Return true if start date is now or later.
     * (Rather start/end are included by options is ignored.)
     *
     * @return bool
     */
    public function isStarted(): bool
    {
        return $this->startsBeforeOrAt();
    }

/**
     * Return true if end date is now or later.
     * (Rather start/end are included by options is ignored.)
     *
     * @return bool
     */
    public function isEnded(): bool
    {
        return $this->endsBeforeOrAt();
    }

/**
     * Return true if now is between start date (included) and end date (excluded).
     * (Rather start/end are included by options is ignored.)
     *
     * @return bool
     */
    public function isInProgress(): bool
    {
        return $this->isStarted() && !$this->isEnded();
    }

/**
     * Round the current instance at the given unit with given precision if specified and the given function.
     *
     * @param string                              $unit
     * @param float|int|string|\DateInterval|null $precision
     * @param string                              $function
     *
     * @return $this
     */
    public function roundUnit($unit, $precision = 1, $function = 'round')
    {
        $this->setStartDate($this->getStartDate()->roundUnit($unit, $precision, $function));

if ($this->endDate) {
            $this->setEndDate($this->getEndDate()->roundUnit($unit, $precision, $function));
        }

$this->setDateInterval($this->getDateInterval()->roundUnit($unit, $precision, $function));

return $this;
    }

/**
     * Truncate the current instance at the given unit with given precision if specified.
     *
     * @param string                              $unit
     * @param float|int|string|\DateInterval|null $precision
     *
     * @return $this
     */
    public function floorUnit($unit, $precision = 1)
    {
        return $this->roundUnit($unit, $precision, 'floor');
    }

/**
     * Ceil the current instance at the given unit with given precision if specified.
     *
     * @param string                              $unit
     * @param float|int|string|\DateInterval|null $precision
     *
     * @return $this
     */
    public function ceilUnit($unit, $precision = 1)
    {
        return $this->roundUnit($unit, $precision, 'ceil');
    }

/**
     * Round the current instance second with given precision if specified (else period interval is used).
     *
     * @param float|int|string|\DateInterval|null $precision
     * @param string                              $function
     *
     * @return $this
     */
    public function round($precision = null, $function = 'round')
    {
        return $this->roundWith($precision ?? (string) $this->getDateInterval(), $function);
    }

/**
     * Round the current instance second with given precision if specified (else period interval is used).
     *
     * @param float|int|string|\DateInterval|null $precision
     *
     * @return $this
     */
    public function floor($precision = null)
    {
        return $this->round($precision, 'floor');
    }

/**
     * Ceil the current instance second with given precision if specified (else period interval is used).
     *
     * @param float|int|string|\DateInterval|null $precision
     *
     * @return $this
     */
    public function ceil($precision = null)
    {
        return $this->round($precision, 'ceil');
    }

/**
     * Specify data which should be serialized to JSON.
     *
     * @link https://php.net/manual/en/jsonserializable.jsonserialize.php
     *
     * @return CarbonInterface[]
     */
    #[ReturnTypeWillChange]
    public function jsonSerialize()
    {
        return $this->toArray();
    }

/**
     * Return true if the given date is between start and end.
     *
     * @param \Carbon\Carbon|\Carbon\CarbonPeriod|\Carbon\CarbonInterval|\DateInterval|\DatePeriod|\DateTimeInterface|string|null $date
     *
     * @return bool
     */
    public function contains($date = null): bool
    {
        $startMethod = 'startsBefore'.($this->isStartIncluded() ? 'OrAt' : '');
        $endMethod = 'endsAfter'.($this->isEndIncluded() ? 'OrAt' : '');

return $this->$startMethod($date) && $this->$endMethod($date);
    }

/**
     * Return true if the current period follows a given other period (with no overlap).
     * For instance, [2019-08-01 -> 2019-08-12] follows [2019-07-29 -> 2019-07-31]
     * Note than in this example, follows() would be false if 2019-08-01 or 2019-07-31 was excluded by options.
     *
     * @param \Carbon\CarbonPeriod|\DatePeriod|string $period
     *
     * @return bool
     */
    public function follows($period, ...$arguments): bool
    {
        $period = $this->resolveCarbonPeriod($period, ...$arguments);

return $this->getIncludedStartDate()->equalTo($period->getIncludedEndDate()->add($period->getDateInterval()));
    }

/**
     * Return true if the given other period follows the current one (with no overlap).
     * For instance, [2019-07-29 -> 2019-07-31] is followed by [2019-08-01 -> 2019-08-12]
     * Note than in this example, isFollowedBy() would be false if 2019-08-01 or 2019-07-31 was excluded by options.
     *
     * @param \Carbon\CarbonPeriod|\DatePeriod|string $period
     *
     * @return bool
     */
    public function isFollowedBy($period, ...$arguments): bool
    {
        $period = $this->resolveCarbonPeriod($period, ...$arguments);

return $period->follows($this);
    }

/**
     * Return true if the given period either follows or is followed by the current one.
     *
     * @see follows()
     * @see isFollowedBy()
     *
     * @param \Carbon\CarbonPeriod|\DatePeriod|string $period
     *
     * @return bool
     */
    public function isConsecutiveWith($period, ...$arguments): bool
    {
        return $this->follows($period, ...$arguments) || $this->isFollowedBy($period, ...$arguments);
    }

/**
     * Update properties after removing built-in filters.
     *
     * @return void
     */
    protected function updateInternalState()
    {
        if (!$this->hasFilter(static::END_DATE_FILTER)) {
            $this->endDate = null;
        }

if (!$this->hasFilter(static::RECURRENCES_FILTER)) {
            $this->recurrences = null;
        }
    }

/**
     * Create a filter tuple from raw parameters.
     *
     * Will create an automatic filter callback for one of Carbon's is* methods.
     *
     * @param array $parameters
     *
     * @return array
     */
    protected function createFilterTuple(array $parameters)
    {
        $method = array_shift($parameters);

if (!$this->isCarbonPredicateMethod($method)) {
            return [$method, array_shift($parameters)];
        }

return [function ($date) use ($method, $parameters) {
            return ([$date, $method])(...$parameters);
        }, $method];
    }

/**
     * Return whether given callable is a string pointing to one of Carbon's is* methods
     * and should be automatically converted to a filter callback.
     *
     * @param callable $callable
     *
     * @return bool
     */
    protected function isCarbonPredicateMethod($callable)
    {
        return \is_string($callable) && substr($callable, 0, 2) === 'is' &&
            (method_exists($this->dateClass, $callable) || ([$this->dateClass, 'hasMacro'])($callable));
    }

/**
     * Recurrences filter callback (limits number of recurrences).
     *
     * @SuppressWarnings(PHPMD.UnusedFormalParameter)
     *
     * @param \Carbon\Carbon $current
     * @param int            $key
     *
     * @return bool|string
     */
    protected function filterRecurrences($current, $key)
    {
        if ($key < $this->recurrences) {
            return true;
        }

return static::END_ITERATION;
    }

/**
     * End date filter callback.
     *
     * @param \Carbon\Carbon $current
     *
     * @return bool|string
     */
    protected function filterEndDate($current)
    {
        if (!$this->isEndExcluded() && $current == $this->endDate) {
            return true;
        }

if ($this->dateInterval->invert ? $current > $this->endDate : $current < $this->endDate) {
            return true;
        }

return static::END_ITERATION;
    }

/**
     * End iteration filter callback.
     *
     * @return string
     */
    protected function endIteration()
    {
        return static::END_ITERATION;
    }

/**
     * Handle change of the parameters.
     */
    protected function handleChangedParameters()
    {
        if (($this->getOptions() & static::IMMUTABLE) && $this->dateClass === Carbon::class) {
            $this->setDateClass(CarbonImmutable::class);
        } elseif (!($this->getOptions() & static::IMMUTABLE) && $this->dateClass === CarbonImmutable::class) {
            $this->setDateClass(Carbon::class);
        }

$this->validationResult = null;
    }

/**
     * Validate current date and stop iteration when necessary.
     *
     * Returns true when current date is valid, false if it is not, or static::END_ITERATION
     * when iteration should be stopped.
     *
     * @return bool|string
     */
    protected function validateCurrentDate()
    {
        if ($this->current === null) {
            $this->rewind();
        }

// Check after the first rewind to avoid repeating the initial validation.
        if ($this->validationResult !== null) {
            return $this->validationResult;
        }

return $this->validationResult = $this->checkFilters();
    }

/**
     * Check whether current value and key pass all the filters.
     *
     * @return bool|string
     */
    protected function checkFilters()
    {
        $current = $this->prepareForReturn($this->current);

foreach ($this->filters as $tuple) {
            $result = \call_user_func(
                $tuple[0],
                $current->avoidMutation(),
                $this->key,
                $this
            );

if ($result === static::END_ITERATION) {
                return static::END_ITERATION;
            }

if (!$result) {
                return false;
            }
        }

return true;
    }

/**
     * Prepare given date to be returned to the external logic.
     *
     * @param CarbonInterface $date
     *
     * @return CarbonInterface
     */
    protected function prepareForReturn(CarbonInterface $date)
    {
        $date = ([$this->dateClass, 'make'])($date);

if ($this->timezone) {
            $date = $date->setTimezone($this->timezone);
        }

return $date;
    }

/**
     * Keep incrementing the current date until a valid date is found or the iteration is ended.
     *
     * @throws RuntimeException
     *
     * @return void
     */
    protected function incrementCurrentDateUntilValid()
    {
        $attempts = 0;

do {
            $this->current = $this->current->add($this->dateInterval);

$this->validationResult = null;

if (++$attempts > static::NEXT_MAX_ATTEMPTS) {
                throw new UnreachableException('Could not find next valid date.');
            }
        } while ($this->validateCurrentDate() === false);
    }

/**
     * Call given macro.
     *
     * @param string $name
     * @param array  $parameters
     *
     * @return mixed
     */
    protected function callMacro($name, $parameters)
    {
        $macro = static::$macros[$name];

if ($macro instanceof Closure) {
            $boundMacro = @$macro->bindTo($this, static::class) ?: @$macro->bindTo(null, static::class);

return ($boundMacro ?: $macro)(...$parameters);
        }

return $macro(...$parameters);
    }

/**
     * Return the Carbon instance passed through, a now instance in the same timezone
     * if null given or parse the input if string given.
     *
     * @param \Carbon\Carbon|\Carbon\CarbonPeriod|\Carbon\CarbonInterval|\DateInterval|\DatePeriod|\DateTimeInterface|string|null $date
     *
     * @return \Carbon\CarbonInterface
     */
    protected function resolveCarbon($date = null)
    {
        return $this->getStartDate()->nowWithSameTz()->carbonize($date);
    }

/**
     * Resolve passed arguments or DatePeriod to a CarbonPeriod object.
     *
     * @param mixed $period
     * @param mixed ...$arguments
     *
     * @return static
     */
    protected function resolveCarbonPeriod($period, ...$arguments)
    {
        if ($period instanceof self) {
            return $period;
        }

return $period instanceof DatePeriod
            ? static::instance($period)
            : static::create($period, ...$arguments);
    }

private function orderCouple($first, $second): array
    {
        return $first > $second ? [$second, $first] : [$first, $second];
    }
}

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