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<?php
/**
* ElggStaticVariableCache
* Dummy cache which stores values in a static array. Using this makes future replacements to other caching back
* ends (eg memcache) much easier.
*
* @author Curverider Ltd <info@elgg.com>
* @package Elgg
* @subpackage API
*/
class ElggStaticVariableCache extends ElggSharedMemoryCache {
/**
* The cache.
*
* @var unknown_type
*/
private static $__cache;
/**
* Create the variable cache.
*
* This function creates a variable cache in a static variable in memory, optionally with a given namespace (to avoid overlap).
*
* @param string $namespace The namespace for this cache to write to - note, namespaces of the same name are shared!
*/
function __construct($namespace = 'default') {
$this->setNamespace($namespace);
$this->clear();
}
public function save($key, $data) {
$namespace = $this->getNamespace();
ElggStaticVariableCache::$__cache[$namespace][$key] = $data;
return true;
}
public function load($key, $offset = 0, $limit = null) {
$namespace = $this->getNamespace();
if (isset(ElggStaticVariableCache::$__cache[$namespace][$key])) {
return ElggStaticVariableCache::$__cache[$namespace][$key];
}
return false;
}
public function delete($key) {
$namespace = $this->getNamespace();
unset(ElggStaticVariableCache::$__cache[$namespace][$key]);
return true;
}
public function clear() {
$namespace = $this->getNamespace();
if (!isset(ElggStaticVariableCache::$__cache)) {
ElggStaticVariableCache::$__cache = array();
}
ElggStaticVariableCache::$__cache[$namespace] = array();
}
}
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