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<?php
/**
*
* This file is part of the phpBB Forum Software package.
*
* @copyright (c) phpBB Limited <https://www.phpbb.com>
* @license GNU General Public License, version 2 (GPL-2.0)
*
* For full copyright and license information, please see
* the docs/CREDITS.txt file.
*
*/
namespace phpbb\cache\driver;
/**
* ACM for APCU
*/
class apcu extends \phpbb\cache\driver\memory
{
var $extension = 'apcu';
/**
* {@inheritDoc}
*/
function purge()
{
/*
Use an iterator to selectively clear our cache entries without disturbing
any other cache users (e.g. other phpBB boards hosted on this server)
*/
apcu_delete(new \APCUIterator('#^' . $this->key_prefix . '#'));
parent::purge();
}
/**
* Fetch an item from the cache
*
* @access protected
* @param string $var Cache key
* @return mixed Cached data
*/
function _read($var)
{
return apcu_fetch($this->key_prefix . $var);
}
/**
* Store data in the cache
*
* @access protected
* @param string $var Cache key
* @param mixed $data Data to store
* @param int $ttl Time-to-live of cached data
* @return bool True if the operation succeeded
*/
function _write($var, $data, $ttl = 2592000)
{
return apcu_store($this->key_prefix . $var, $data, $ttl);
}
/**
* Remove an item from the cache
*
* @access protected
* @param string $var Cache key
* @return bool True if the operation succeeded
*/
function _delete($var)
{
return apcu_delete($this->key_prefix . $var);
}
}
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