PayPal 收据不显示使用 SetExpressCheckout 的描述信息

Question

我正在使用 PayPal 的 API 通过 SetExpressCheckout 方法处理付款。

$requestParams = array(
   'RETURNURL' => 'SUCCESS_PAGE_URL',
   'CANCELURL' => 'CANCE_PAGE_URL'
);

$orderParams = array(
   'PAYMENTREQUEST_0_AMT' => $price,
   'PAYMENTREQUEST_0_SHIPPINGAMT' => '0',
   'PAYMENTREQUEST_0_CURRENCYCODE' => 'USD',
   'PAYMENTREQUEST_0_ITEMAMT' => $price
);

$item = array(
   'L_PAYMENTREQUEST_0_NAME0' => $item_name,
   'L_PAYMENTREQUEST_0_DESC0' => $item_description,
   'L_PAYMENTREQUEST_0_AMT0' => $price,
   'L_PAYMENTREQUEST_0_QTY0' => '1'
);

$paypal = new Paypal();
$response = $paypal -> request('SetExpressCheckout',$requestParams + $orderParams + $item);

一切正常，但即使描述显示在 PayPal 的结帐页面中，我收到的电子邮件收据也缺少描述信息。

有谁知道我怎样才能让描述显示在收据上？

Answer 1

想通了。当 SetExpressCheckout 完成并返回“成功”时，它会被重定向到 PayPal，然后返回到您指定的 RETURNURL。在此 RETURNURL 页面上，对于 DoExpressCheckoutPayment，您需要指定订单详细信息，这就是发票中显示的内容。这是代码:

 // Complete the checkout transaction
$requestParams = array(
   'TOKEN' => $_GET['token'],
   'PAYMENTACTION' => 'Sale',
   'PAYERID' => $_GET['PayerID'],
   'PAYMENTREQUEST_0_AMT' => '1', // Same amount as in the original request
   'PAYMENTREQUEST_0_CURRENCYCODE' => 'USD' // Same currency as the original request

);

$item = array(
   'L_PAYMENTREQUEST_0_NAME0' => $name, 
   'L_PAYMENTREQUEST_0_DESC0' => $desc, // <-- this is the description
   'L_PAYMENTREQUEST_0_AMT0' => $price,
   'L_PAYMENTREQUEST_0_QTY0' => '1'
);

$response = $paypal -> request('DoExpressCheckoutPayment',$requestParams + $item);