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memcached.php
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<?php
/*
* Zed
* (c) 2010, Dereckson, some rights reserved
* Released under BSD license
*
* Cache class: memcached
*
* 0.1 2010-07-06 22:55 Initial version [DcK]
*
* !!! This class uses the Memcached extension AND NOT the Memcache ext !!!!
*
* References:
* - http://www.php.net/manual/en/book/memcached.php
* - http://memcached.org
*
* This class implements a singleton pattern.
*
*/
class CacheMemcached {
/*
* @var CacheMemcached the current cache instance
*/
static $instance = null;
/*
* @var Memcached the Memcached object
*/
private $memcached = null;
/*
* Gets the cache instance, initializing it if needed
* @eturn Cache the cache instance, or null if nothing is cached
*/
static function load () {
//Checks extension is okay
if (!extension_loaded('memcached')) {
if (extension_loaded('memcache')) {
message_die(GENERAL_ERROR, "Can't initialize $engine cache engine.<br />PHP extension memcached not loaded.<br /><strong>!!! This class uses the Memcached extension AND NOT the Memcache extension (this one is loaded) !!!</strong>", 'Cache');
} else {
message_die(GENERAL_ERROR, "Can't initialize $engine cache engine.<br />PHP extension memcached not loaded.", 'Cache');
}
}
//Creates the Memcached object if needed
if (self::$instance === null) {
global $Config;
self::$instance = new CacheMemcached();
self::$instance->memcached = new Memcached();
self::$instance->memcached->addServer(
$Config['cache']['server'],
$Config['cache']['port']
);
}
return self::$instance;
}
/*
* Gets the specified key's data
*/
function get ($key) {
return $this->memcached->get($key);
}
/*
* Sets the specified data at the specified key
*/
function set ($key, $value) {
return $this->memcached->set($key, $value);
}
/*
* Deletes the specified key's data
*/
function delete ($key) {
return $this->memcached->delete($key);
}
}
?>

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