如何在paypal完成付款后获得成功的帖子值

Question

我按照PHP的简单代码进行paypal集成

这是我的代码，

<form action="<?php echo $paypal_url; ?>" method="post">
        <input type="hidden" name="business" value="<?php echo $paypal_id; ?>">

        <input type="hidden" name="cmd" value="_xclick">

        <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">

        <input type='hidden' name='cancel_return' value='http://localhost/paypal_integration_php/cancel.php'>
        <input type='hidden' name='return' value='http://localhost/paypal_integration_php/success.php'>

        <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>

和， 这是Success.php

<?php
include 'db_config.php';

$item_number = $_REQUEST['item_number']; 
$txn_id = $_REQUEST['tx'];
$payment_gross = $_REQUEST['amount'];
$currency_code = $_REQUEST['currency_code'];
$payment_status = $_REQUEST['st'];
?>

但是当我回到我的成功档案时，我得到了这样的错误，

我不清楚IPN和PDT概念是否清晰......

Answer 1

试试这个

$item_name        = $_POST['item_name'];
$item_number      = $_POST['item_number'];
$payment_status   = $_POST['payment_status'];
$payment_amount   = $_POST['mc_gross'];
$payment_currency = $_POST['mc_currency'];
$txn_id           = $_POST['txn_id'];
$receiver_email   = $_POST['receiver_email'];
$payer_email      = $_POST['payer_email'];

IPN Docs

Answer 2

我对此并不完全确定，但我相信PDT正在使用GET参数进行响应。因此，当你回去时检查网址，它可能看起来像：

xxxxx.com/?TX=XXXX&AMOUNT=XXXX等

如果是这种情况那么你的变量应该是

$txn_id = $_GET['TX'];
$amount = $_GET['AMOUNT'];

等，其中包含网址中的所有详细信息。

如果您正在使用IPN，我建议您在$ _POST上执行var_dump或print_r，以查看您从paypal收到的数据类型。然后你就可以将它们添加到变量中。例如：

$item_name = $_POST['whatever post data you got from paypal'];