95 lines
3.1 KiB
PHP
95 lines
3.1 KiB
PHP
<?php
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/* -*- tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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# ***** BEGIN LICENSE BLOCK *****
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# This file is part of Plume Framework, a simple PHP Application Framework.
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# Copyright (C) 2001-2007 Loic d'Anterroches and contributors.
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#
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# Plume Framework is free software; you can redistribute it and/or modify
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# it under the terms of the GNU Lesser General Public License as published by
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# the Free Software Foundation; either version 2.1 of the License, or
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# (at your option) any later version.
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#
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# Plume Framework is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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#
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# ***** END LICENSE BLOCK ***** */
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/**
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* Memcached based cache.
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*
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* A special 'cache_memcached_keyprefix' can be set to use one
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* memcached for different applications and avoid conflict.
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*
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* Example of configuration:
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*
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* <pre>
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* $cfg['cache_engine'] = 'Pluf_Cache_Memcached';
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* $cfg['cache_timeout'] = 300;
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* $cfg['cache_memcached_keyprefix'] = 'uniqueforapp';
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* $cfg['cache_memcached_server'] = 'localhost';
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* $cfg['cache_memcached_port'] = 11211;
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* $cfg['cache_memcached_compress'] = 0; (or MEMCACHE_COMPRESSED)
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* </pre>
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*/
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class Pluf_Cache_Memcached extends Pluf_Cache
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{
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private $memcache = null;
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private $keyprefix = '';
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public function __construct()
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{
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$this->memcache = memcache_connect(Pluf::f('cache_memcached_server', 'localhost'),
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Pluf::f('cache_memcached_port', 11211));
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if (false === $this->memcache) {
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$this->memcache = null;
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}
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$this->keyprefix = Pluf::f('cache_memcached_keyprefix', '');
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}
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/**
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* Set a value in the cache.
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*
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* @param string Key to store the information
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* @param mixed Value to store
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* @param int Timeout in seconds (null)
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* @return bool Success
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*/
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public function set($key, $value, $timeout=null)
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{
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if ($this->memcache) {
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if ($timeout == null) $timeout = Pluf::f('cache_timeout', 300);
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$this->memcache->set($this->keyprefix.$key, serialize($value),
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Pluf::f('cache_memcached_compress', 0),
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$timeout);
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}
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}
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/**
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* Get value from the cache.
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*
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* @param string Key to get the information
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* @param mixed Default value to return if cache miss (null)
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* @param mixed Stored value or default
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*/
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public function get($key, $default=null)
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{
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if ($this->memcache) {
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$val = $this->memcache->get($this->keyprefix.$key);
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if (false === $val) {
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return $default;
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} else {
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return unserialize($val);
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}
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} else {
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return $default;
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}
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}
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}
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