class Memcache{

    private static $mem = null;

    public function mem_create(){

        self::$mem = new \Memcache();

        self::$mem->connect('127.0.0.1');

    }

    public function __destruct(){

        if(self::$mem instanceof \Memcache) self::$mem->close();

    }

    public fucntion mem_set($k,$v,$boolean = false,$expire = ){

        if(!self::$mem instanceof \Memcache) $this->mem_create();

        return self::$mem->set($k,$v,$boolean,$e);

    }

    public fucntion mem_add($k,$v,$boolean = false,$expire = ){

        if(!self::$mem instanceof \Memcache) $this->mem_create();

        return self::$mem->add($k,$v,$boolean,$e);

    }

    public fucntion mem_get($k){

        if(!self::$mem instanceof \Memcache) $this->mem_create();

        return self::$mem->get($k);

    }

}