public function remove($key){
        return ($this->memcache) ? $this->memcache->remove($this->prefix . '_' . $key) : false;
    }
public function remove($key){
        return ($this->memcache) ? $this->memcache->remove($this->prefix . '_' . $key) : false;
    }
public function remove ( $ key ) { return ( $ this -> memcache ) ? $ this -> memcache -> remove ( $ this -> prefix . '_' . $ key ) : false ; }
Remove Memcache key

@param $key
@return bool
Remove Memcache key