PayPal Rest API完成付款但未在沙箱交易中显示

Question

我使用PayPal Rest API创建了一个PHP脚本。当我完成付款时，网站会重定向到带有付款成功标签的完成页面，但是当我访问沙盒paypal网站时，我看不到任何交易。我能做些什么来解决这个问题？

这里有3个脚本：

start.php

<?php

require 'vendor/autoload.php';

define('SITE_URL', 'http://192.168.1.105/Fenix/Include/pay.php');

$paypal = new \PayPal\Rest\ApiContext(
    new \PayPal\Auth\OAuthTokenCredential(
        'AX5IC3G3s-XRzfMgmSUjEPGbHAjD6PL80skf7Xck50OKWXQ2nGf-9NWk5FjSaMCh1FPpxFvUioqZEbjy',
        'EJ8GDd08PwnRM1VxYzT2-fBmxAYzykYZ_zlwHi_zqmFGOQzaoXHAffM5DSiBDTcd8L6OpyDzGt5gtmMU'
        )
);

＆GT;

checkout.php

<?php

include "./vendor/autoload.php";

use PayPal\Api\Payer;
use PayPal\Api\Item;
use PayPal\Api\ItemList;
use PayPal\Api\Details;
use PayPal\Api\Amount;
use PayPal\Api\Transaction;
use PayPal\Api\RedirectUrls;
use PayPal\Api\Payment;

require 'start.php';

/*
if (!isset($_POST['product'], $_POST['price'])){
    die();
}
*/

$product = "Fenix ID";
$price = 0.01;
$shipping = 0;
$total = $price+$shipping;

$payer = new Payer();
$payer->setPaymentMethod('paypal');

$item = new Item();
$item->setName($product)
     ->setCurrency('EUR')
     ->setQuantity(1)
     ->setPrice($price);

$itemList = new ItemList();
$itemList->setItems([$item]);

$details = new Details();
$details->setShipping($shipping)
        ->setSubtotal($price);

$amount = new Amount();
$amount->setCurrency('EUR')
        ->setTotal($total)
        ->setDetails($details);

$transaction = new Transaction();
$transaction->setAmount($amount)
            ->setItemList($itemList)
            ->setDescription('Fenix ID')
            ->setInvoiceNumber(uniqid());

$redirectUrls = new RedirectUrls();
$redirectUrls->setReturnUrl(SITE_URL . '/pay.php?success=true')
             ->setCancelUrl(SITE_URL . '/pay.php?success=false');

$payment = new Payment();
$payment->setIntent('sale')
        ->setPayer($payer)
        ->setRedirectUrls($redirectUrls)
        ->setTransactions([$transaction]);

try {
    $payment->create($paypal);
}catch (Exception $e){
    die($e);
}

$approvalUrl = $payment->getApprovalLink();
header("Location: {$approvalUrl}");

＆GT;

pay.php

<?php

use PayPal\Api\Payment;
use PayPal\Api\PaymentExecution;

require 'start.php';

if (!isset($_GET['success'], $_GET['paymentId'], $_GET['PayerID'])) {
    die();
}

if ((bool)$_GET['success'] === false) {
    die();
}

 $paymentId = $_GET['paymentId'];
$payment = Payment::get($paymentId, $paypal);
$execution = new PaymentExecution();
$execution->setPayerId($_GET['PayerID']);



echo "Payment success!";

＆GT;

感谢您的帮助。