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<?php
/**
* This file is part of Handlebars-php
* Base on mustache-php https://github.com/bobthecow/mustache.php
*
* PHP version 5.3
*
* @category Xamin
* @package Handlebars
* @author Joey Baker <joey@byjoeybaker.com>
* @author Behrooz Shabani <everplays@gmail.com>
* @author Mária Šormanová <maria.sormanova@gmail.com>
* @copyright 2013 (c) Meraki, LLP
* @copyright 2013 (c) Behrooz Shabani
* @license MIT <http://opensource.org/licenses/MIT>
* @version GIT: $Id$
* @link http://xamin.ir
*/
namespace Handlebars\Cache;
use Handlebars\Cache;
/**
* A APC cache
*
* @category Xamin
* @package Handlebars
* @author Joey Baker <joey@byjoeybaker.com>
* @copyright 2012 (c) Meraki, LLP
* @license MIT <http://opensource.org/licenses/MIT>
* @version Release: @package_version@
* @link http://xamin.ir
*/
class APC implements Cache
{
/**
* @var string
*/
private $_prefix;
/**
* Construct the APC cache.
*
* @param string|null $prefix optional key prefix, defaults to null
*/
public function __construct( $prefix = null )
{
$this->_prefix = (string)$prefix;
}
/**
* Get cache for $name if exist
* and if the cache is not older than defined TTL.
*
* @param string $name Cache id
*
* @return mixed data on hit, boolean false on cache not found/expired
*/
public function get($name)
{
$success = null;
$result = apc_fetch($this->_getKey($name), $success);
return $success ? $result : false;
}
/**
* Set a cache with $ttl, if present
* If $ttl set to -1, the cache expires immediately
* If $ttl set to 0 (default), cache is never purged
*
* @param string $name cache id
* @param mixed $value data to store
* @param int $ttl time to live in seconds
*
* @return void
*/
public function set($name, $value, $ttl = 0)
{
apc_store($this->_getKey($name), $value, $ttl);
}
/**
* Remove cache
*
* @param string $name Cache id
*
* @return void
*/
public function remove($name)
{
apc_delete($this->_getKey($name));
}
/**
* Gets the full cache key for a given cache item's
*
* @param string $name Name of the cache item
*
* @return string full cache key of cached item
*/
private function _getKey($name)
{
return $this->_prefix . ':' . $name;
}
}
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