public function add(array $params) {
        foreach ($params as $key => $value) {
            $this->set($key, $value);
        }

        return $this;
    }
public function add(array $params) {
        foreach ($params as $key => $value) {
            $this->set($key, $value);
        }

        return $this;
    }
public function add ( array $ params ) { foreach ( $ params as $ key => $ value ) { $ this -> set ( $ key , $ value ) ; } return $ this ; }
Add multiple parameters.

@param array $params
@return $this
Add multiple parameters .