public function init($parameters)
    {
        if (!empty($parameters["db_server"])) {
            $this->db_server = $parameters["db_server"];
        }
        if (!empty($parameters["db_name"])) {
            $this->db_name = $parameters["db_name"];
        }
        if (!empty($parameters["db_user"])) {
            $this->db_user = $parameters["db_user"];
        }
        if (!empty($parameters["db_password"])) {
            $this->db_password = $parameters["db_password"];
        }
        
        return true;
    }