未收到PayPal IPN回调

Question

这是我用来获取付款并将付款数据存储到数据库中的付款表格和成功页面。 付款表格正常工作，但是success.php页面没有从Paypal获取任何数据。 我已经在Paypal帐户中添加了IPN和自动返回URL，但是它不起作用。 请有人帮我。

 <?php include 'dbConfig.php'; //Get payment information from PayPal $item_number = $_GET['item_number']; $txn_id = $_GET['tx']; $payment_gross = $_GET['amt']; $currency_code = $_GET['cc']; $payment_status = $_GET['st']; //Get product price from database $productResult = $db->query("SELECT price FROM products WHERE id = ".$item_number); $productRow = $productResult->fetch_assoc(); $productPrice = $productRow['price']; if(!empty($txn_id) && $payment_gross == $productPrice){ //Check if payment data exists with the same TXN ID. $prevPaymentResult = $db->query("SELECT payment_id FROM payments WHERE txn_id = '".$txn_id."'"); if($prevPaymentResult->num_rows > 0){ $paymentRow = $prevPaymentResult->fetch_assoc(); $last_insert_id = $paymentRow['payment_id']; }else{ //Insert tansaction data into the database $insert = $db->query("INSERT INTO payments(item_number,txn_id,payment_gross,currency_code,payment_status) VALUES('".$item_number."','".$txn_id."','".$payment_gross."','".$currency_code."','".$payment_status."')"); $last_insert_id = $db->insert_id; } ?> <h1>Your payment has been successful.</h1> <h1>Your Payment ID - <?php echo $last_insert_id; ?>.</h1> <?php }else{ ?> <h1>Your payment has failed.</h1> <?php } ?> 

唱歌以获取付款及其正常工作，但是我没有收到IPN消息以及数据库中是否有任何数据？

 <!-- begin snippet: js hide: false console: true babel: false --> 

<?php
//Include db configuration file
include 'dbConfig.php';

//Set useful variables for paypal form
$paypalURL = 'https://www.sandbox.paypal.com/cgi-bin/webscr'; //Test PayPal API URL
$paypalID = 'mybusiness@demo.com'; //Business Email

?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>PayPal Standard Payment Gateway Integration by CodexWorld</title>
</head>
<body>
<?php
//Fetch products from the database
$results = $db->query("SELECT * FROM products");
while($row = $results->fetch_assoc()){
?>
<img src="images/<?php echo $row['image']; ?>"/>
<br/>Name: <?php echo $row['name']; ?>
<br/>Price: <?php echo $row['price']; ?>
<form action="<?php echo $paypalURL; ?>" method="post">
<!-- Identify your business so that you can collect the payments. -->
<input type="hidden" name="business" value="<?php echo $paypalID; ?>"> 
<!-- Specify a Buy Now button. -->
<input type="hidden" name="cmd" value="_xclick">
<!-- Specify details about the item that buyers will purchase. -->
<input type="hidden" name="item_name" value="<?php echo $row['name']; ?>">
<input type="hidden" name="item_number" value="<?php echo $row['id']; ?>">
<input type="hidden" name="amount" value="<?php echo $row['price']; ?>">
<input type="hidden" name="currency_code" value="USD">
 <!-- Specify URLs -->
<input type='hidden' name='cancel_return' value='https://example.com/paypal_integration_php/cancel.php'>
<input type='hidden' name='return' value='https://example.com/paypal_integration_php/success.php'>
<input type='hidden' name='notify_url' value='https://example.com/paypal_integration_php/ipn.php'>
<!-- Display the payment button. -->
<input type="image" name="submit" border="0"
src="https://www.paypalobjects.com/en_US/i/btn/btn_buynow_LG.gif" alt="PayPal - The safer, easier way to pay online">
<img alt="" border="0" width="1" height="1" src="https://www.paypalobjects.com/en_US/i/scr/pixel.gif" >
</form>
<?php } ?>
</body>
</html>

Answer 1

您使用的代码更有可能用于PDT功能，而不用于IPN。 请检查以下页面以获取IPN的示例代码。

https://github.com/paypal/ipn-code-samples

此外，您可以在下面的页面中查看这两个功能的比较及其详细信息。

https://developer.paypal.com/docs/classic/ipn/integration-guide/IPNPDTAnAlternativetoIPN/

Answer 2

兄弟使用$_REQUEST方法而不是$_GET方法来获取交易的详细信息。 希望它会帮助你