public function open($save_path, $name)
    {
        if (!is_dir($this->save_path)) {
            mkdir($this->save_path, 0777);
        }

        return true;
    }
public function open($save_path, $name)
    {
        if (!is_dir($this->save_path)) {
            mkdir($this->save_path, 0777);
        }

        return true;
    }
public function open ( $ save_path , $ name ) { if ( ! is_dir ( $ this -> save_path ) ) { mkdir ( $ this -> save_path , 0777 ) ; } return true ; }
When the session start

@param string $save_path
@param string $name
@return bool|void
When the session start