www.x-motion.cn/Application/Common/Cache/Mecached.class.php

<?php

namespace Common\Cache;
use Memcached;
/**
 * 加载redis
 * @539 2016-4-6
 */
class Mecached {

    protected $mcache;

    public static $_MCaches = array();

    public function __construct() {
        if (!extension_loaded('memcached')) {
            throw_exception(L('_NOT_SUPPERT_') . ':memcached');
        }
        $this->initCache(MC_HOST);
    }

    public function initCache($cache_server_name){
        if(isset(self::$_MCaches[$cache_server_name])){
            $this->mcache = self::$_MCaches[$cache_server_name];
        }else{
            self::$_MCaches[$cache_server_name] = new Memcached;  //声明一个新的memcached链接
            self::$_MCaches[$cache_server_name]->setOption(Memcached::OPT_COMPRESSION, false); //关闭压缩功能
            self::$_MCaches[$cache_server_name]->setOption(Memcached::OPT_BINARY_PROTOCOL, true); //使用binary二进制协议
            self::$_MCaches[$cache_server_name]->addServer($cache_server_name, MC_PORT);
            $this->mcache = self::$_MCaches[$cache_server_name];
        }
        
    }

    public function get($key) {     //获取MC值
        if (empty($key)) {
            return false;
        }
        $res = $this->mcache->get($key);
        return $res;
    }

    /**
     * @param type $key    key值
     * @param type $val    存入的值
     * @param type $expire 过期时间,默认null秒 //设置为0表明此数据永不过期（但是它可能由于服务端为了给其他新的元素分配空间而被删除）
     * @return boolean
     */
    public function set($key, $val, $expire = null) {
        if (empty($key)) {
            return false;
        }
        $res = $this->mcache->set($key, $val, $expire);
        return $res;
    }

    public function saveOne($key, $update_val, $expire = null) {
        $val = $this->mcache->get($key);
        if (is_array($val)) {
            $update_val = array_merge($val, $update_val);
        }
        $res = $this->mcache->set($key, $update_val, $expire);
        return  $res;
    }

    public function delete($key) {   //根据key清除缓存
        if (empty($key)) {
            return false;
        }
        $res = $this->mcache->delete($key);
        return $res;
    }

    public function getMulti() {

    }

    public function setMulti() {

    }

    public function delMulti() {

    }
    //自增
    public function increment($key,$val){
        $res = $this->mcache->increment($key, $val);
        return $res;
    }

    public function clearAll() {    //清除所有缓存
        $res = $this->mcache->flush();
        return $res;
    }
}