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<?php
/**
* The Horde_Cache_zps4:: class provides a Zend Performance Suite
* (version 4.0+) implementation of the Horde caching system.
*
* $Horde: framework/Cache/Cache/zps4.php,v 1.1.10.4 2006/01/01 21:28:10 jan Exp $
*
* Copyright 1999-2006 Chuck Hagenbuch <chuck@horde.org>
*
* See the enclosed file COPYING for license information (LGPL). If you
* did not receive this file, see http://www.fsf.org/copyleft/lgpl.html.
*
* @author Chuck Hagenbuch <chuck@horde.org>
* @since Horde 3.0
* @package Horde_Cache
*/
class Horde_Cache_zps4 extends Horde_Cache {
/**
* Attempts to retrieve a piece of cached data and return it to the caller.
*
* @param string $key Cache key to fetch.
* @param integer $lifetime Lifetime of the key in seconds.
*
* @return mixed Cached data, or false if none was found.
*/
function get($key, $lifetime = 1)
{
return output_cache_get($key, $lifetime);
}
/**
* Attempts to store an object to the cache.
*
* @param string $key Cache key (identifier).
* @param mixed $data Data to store in the cache.
*
* @return boolean True on success, false on failure.
*/
function set($key, $data)
{
output_cache_put($key, $data);
return true;
}
/**
* Attempts to directly output cached data.
*
* @param string $key Cache key to output.
* @param integer $lifetime Lifetime of the key in seconds.
*
* @return mixed Cached data, or false if none was found.
*/
function output($key, $lifetime = 1)
{
echo $this->fetch($key, $lifetime);
}
/**
* Checks if a given key exists in the cache, valid for the given lifetime.
*
* @param string $key Cache key to check.
* @param integer $lifetime Lifetime of the key in seconds.
*
* @return boolean Existance.
*/
function exists($key, $lifetime = 1)
{
$exists = output_cache_exists($key, $lifetime);
output_cache_stop();
return $exists;
}
/**
* Expire any existing data for the given key.
*
* @param string $key Cache key to expire.
*
* @return boolean Success or failure.
*/
function expire($key)
{
return output_cache_remove_key($key);
}
}
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