ThinkPHP/Library/Think/Cache/Driver/Memcachesae.class.php

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<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006-2012 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: liu21st <liu21st@gmail.com>
// +----------------------------------------------------------------------
namespace Think\Cache\Driver;
use Think\Cache;

defined('THINK_PATH') or exit();
/**
 * Memcache缓存驱动
 * @category   Extend
 * @package  Extend
 * @subpackage  Driver.Cache
 * @author    liu21st <liu21st@gmail.com>
 */
class Memcachesae extends Cache {

    /**
     * 架构函数
     * @param array $options 缓存参数
     * @access public
     */
    function __construct($options=array()) {
        $options = array_merge(array (
            'host'        =>  C('MEMCACHE_HOST') ? : '127.0.0.1',
            'port'        =>  C('MEMCACHE_PORT') ? : 11211,
            'timeout'     =>  C('DATA_CACHE_TIMEOUT') ? : false,
            'persistent'  =>  false,
        ),$options);

        $this->options      =   $options;
        $this->options['expire'] =  isset($options['expire'])?  $options['expire']  :   C('DATA_CACHE_TIME');
        $this->options['prefix'] =  isset($options['prefix'])?  $options['prefix']  :   C('DATA_CACHE_PREFIX');
        $this->options['length'] =  isset($options['length'])?  $options['length']  :   0;
         $this->handler      =  memcache_init();//[sae] 下实例化
        //[sae] 下不用链接
        $this->connected=true;
    }

    /**
     * 是否连接
     * @access private
     * @return boolean
     */
    private function isConnected() {
        return $this->connected;
    }

    /**
     * 读取缓存
     * @access public
     * @param string $name 缓存变量名
     * @return mixed
     */