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System	Linux server.atelieruldeit.ro 3.10.0-1160.el7.x86_64 #1 SMP Mon Oct 19 16:18:59 UTC 2020 x86_64
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PHP Version	7.3.33
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Edit File : wfArray.php \| Size : 1.76 KB
<?php class wfArray { private $data = ""; private $size = 0; private $shiftPtr = 0; public function __construct($keys){ $this->keys = $keys; } public function push($val){ //associative array with keys that match those given to constructor foreach($this->keys as $key){ $this->data .= pack('N', wfUtils::strlen($val[$key])) . $val[$key]; } $this->size++; } public function shift(){ //If you alternately call push and shift you must periodically call collectGarbage() or ->data will keep growing $arr = array(); if(wfUtils::strlen($this->data) < 1){ return null; } if($this->shiftPtr == wfUtils::strlen($this->data)){ return null; } foreach($this->keys as $key){ $len = unpack('N', wfUtils::substr($this->data, $this->shiftPtr, 4)); $len = $len[1]; $arr[$key] = wfUtils::substr($this->data, $this->shiftPtr + 4, $len); $this->shiftPtr += 4 + $len; } if($this->shiftPtr == wfUtils::strlen($this->data)){ //garbage collection $this->data = ""; //we don't shorten with substr() because the assignment doubles peak mem $this->shiftPtr = 0; } $this->size--; return $arr; } public function collectGarbage(){ //only call collectGarbage if you're alternating between pushes and shifts and never emptying the array. //If you don't collect garbage then the data that is shifted is never freed $this->data = wfUtils::substr($this->data, $this->shiftPtr); //at this point memory usage doubles because of the = assignment (string copy is made), so try not to call collect garbage unless you have to. $this->shiftPtr = 0; } public function zero(){ //Rather call this instead of collect garbage because it's way more mem efficient. $this->data = ""; $this->shiftPtr = 0; $this->size = 0; } public function size(){ return $this->size; } } Back

Edit File : wfArray.php | Size : 1.76 KB

<?php
class wfArray {
	private $data = "";
	private $size = 0;
	private $shiftPtr = 0;
	public function __construct($keys){
		$this->keys = $keys;
	}
	public function push($val){ //associative array with keys that match those given to constructor
		foreach($this->keys as $key){
			$this->data .= pack('N', wfUtils::strlen($val[$key])) . $val[$key];
		}
		$this->size++;
	}
	public function shift(){ //If you alternately call push and shift you must periodically call collectGarbage() or ->data will keep growing
		$arr = array();
		if(wfUtils::strlen($this->data) < 1){ return null; }
		if($this->shiftPtr == wfUtils::strlen($this->data)){ return null; }
		foreach($this->keys as $key){
			$len = unpack('N', wfUtils::substr($this->data, $this->shiftPtr, 4));
			$len = $len[1];
			$arr[$key] = wfUtils::substr($this->data, $this->shiftPtr + 4, $len);
			$this->shiftPtr += 4 + $len;
		}
		if($this->shiftPtr == wfUtils::strlen($this->data)){ //garbage collection
			$this->data = ""; //we don't shorten with substr() because the assignment doubles peak mem
			$this->shiftPtr = 0;
		}
		$this->size--;
		return $arr;
	}
	public function collectGarbage(){ //only call collectGarbage if you're alternating between pushes and shifts and never emptying the array. 
					//If you don't collect garbage then the data that is shifted is never freed
		$this->data = wfUtils::substr($this->data, $this->shiftPtr); //at this point memory usage doubles because of the = assignment (string copy is made), so try not to call collect garbage unless you have to.
		$this->shiftPtr = 0;
	}
	public function zero(){ //Rather call this instead of collect garbage because it's way more mem efficient.
		$this->data = "";
		$this->shiftPtr = 0;
		$this->size = 0;
	}
	public function size(){
		return $this->size;
	}
}

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