orders->get("ord_kEn1PlbGa"); $line = $order->lines()->get('odl_1.uh5oen'); $line->name = "Update line name description"; $orderWithNewLineName = $line->update(); /* * Send the customer off to complete the order payment. * This request should always be a GET, thus we enforce 303 http response code */ \header("Location: " . $orderWithNewLineName->getCheckoutUrl(), \true, 303); } catch (\Mollie\Api\Exceptions\ApiException $e) { echo "API call failed: " . \htmlspecialchars($e->getMessage()); }