void.php
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void.php
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	<?php
	/*
	* Zed
	* (c) 2010, Dereckson, some rights reserved
	* Released under BSD license
	*
	* Cache class: void
	*
	* 0.1 2010-07-06 22:55 Initial version [DcK]
	*
	* This class doesn't cache information, it'a void wrapper
	* get will always return null
	* set and delete do nothing
	*
	* This class implements a singleton pattern.
	*
	*/

	class CacheVoid {
	/*
	* @var CacheVoid the current cache instance
	*/
	static $instance = null;

	/*
	* Gets the cache instance, initializing it if needed
	* @eturn Cache the cache instance, or null if nothing is cached
	*/
	static function load () {
	if (self::$instance === null) {
	self::$instance = new CacheVoid();
	}

	return self::$instance;
	}

	/*
	* Gets the specified key's data
	*/
	function get ($key) {
	return null;
	}

	/*
	* Sets the specified data at the specified key
	*/
	function set ($key, $value) { }

	/*
	* Deletes the specified key's data
	*/
	function delete ($key) { }
	}
	?>