PayPal 并行支付 IPN

Posted 2023-02-22

【中文标题】PayPal 并行支付 IPN

【英文标题】：PayPal Parallel Payment IPN

【发布时间】：2012-01-17 09:05:20

【问题描述】：

我已经卡了好几天了！我正在尝试通过并行付款从 PayPal IPN 获取详细信息。

我需要汇款到的两个电子邮件地址和金额，还有状态。

我在看这里：

https://cms.paypal.com/us/cgi-bin/?cmd=_render-content&content_ID=developer/e_howto_api_APIPN

这些是我的代码中我尝试获取电子邮件和金额的行：

$Email1 = $_POST['transaction[0].receiver'];
$Email2 = $_POST['transaction[1].receiver'];

及金额部分：

$Amount1 = $_POST['transaction[0].amount'];
$Amount2 =  $_POST['transaction[1].amount'];

我正在使用此页面的 IPN 代码。

https://cms.paypal.com/cms_content/AU/en_AU/files/developer/IPN_php_41.txt

有什么帮助吗？ POST 变量出现空白？

---

更新：我发现了这个：

<source lang="php">
<?php
error_reporting(E_ALL ^ E_NOTICE); 
// By Gleb Esman, [e-mail], http://www.memberwing.com/
//
// Pull raw POST data.
// We need to pull raw data and build our own copy of $_POST in order to
// workaround of invalid POST keys that Adaptive IPN request uses.

$raw_post_data = file_get_contents('php://input');
$raw_post_array = explode('&', $raw_post_data);
$_YOUR_POST = array();
foreach ($raw_post_array as $keyval) 
  $keyval = explode('=', $keyval);
  if (count($keyval) == 2)
    $_YOUR_POST[$keyval[0]] = urldecode($keyval[1]);

if (count($_YOUR_POST) < 3) 
  $_YOUR_POST = $_POST;
  $original_post_used = TRUE;

else
  $original_post_used = FALSE;

// Build final $_req postback request
// Paypal's IPN Sample
// read the post from PayPal system and add 'cmd'

if ($original_post_used) 
  $_req = 'cmd=_notify-validate';
  foreach ($_YOUR_POST as $key => $value) 
    $value = urlencode(stripslashes($value));
    $_req .= "&$key=$value";
  

else
  $_req = $raw_post_data . '&cmd=_notify-validate';
// $_req is ready for postback to Paypal here...
$req = $_req;

////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////



// PHP 4.1
// read the post from PayPal system and add 'cmd'
//$req = 'cmd=_notify-validate';
//
//foreach ($_POST as $key => $value) 
//  $value = urlencode(stripslashes($value));
//  $req .= "&$key=$value";
//

// post back to PayPal system to validate
$header .= "POST /cgi-bin/webscr HTTP/1.0\r\n";
$header .= "Content-Type: application/x-www-form-urlencoded\r\n";
$header .= "Content-Length: " . strlen($req) . "\r\n\r\n";
$fp = fsockopen('ssl://www.paypal.com', 443, $errno, $errstr, 30);

// throw all this junk into the local error log so we can see what happened!
function log_arr($item, $key) 
  $p .= "$key = $item";
  error_log(urldecode($p));

array_walk_recursive($_YOUR_POST, 'log_arr');
error_log(urldecode($req));

// assign posted variables to local variables
$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'];

if (!$fp) 
// HTTP ERROR
 else 
  fputs($fp, $header . $req);
  while (!feof($fp)) 
    $res = fgets($fp, 1024);
    if (strcmp($res, "VERIFIED") == 0) 
// check the payment_status is Completed
// check that txn_id has not been previously processed
// check that receiver_email is your Primary PayPal email
// check that payment_amount/payment_currency are correct
// process payment
     else if (strcmp($res, "INVALID") == 0) 
// log for manual investigation
    
  
  fclose($fp);

?>
</source>

在日志文件中产生这个：

[10-Dec-2011 07:13:50] transaction[0].id_for_sender_txn = xxxxx
[10-Dec-2011 07:13:50] log_default_shipping_address_in_transaction = xxx
[10-Dec-2011 07:13:50] transaction[0].receiver = xxxxx
[10-Dec-2011 07:13:50] action_type = xxxx

[10-Dec-2011 07:13:50] transaction[1].paymentType = xxx
[10-Dec-2011 07:13:50] transaction[0].amount = xxxx
[10-Dec-2011 07:13:50] charset = xxx

谁能告诉我如何将这些转换为变量，因为这是打印在日志文件中的内容？

【参考方案1】：

试试$_POST['transaction']['0']['receiver'] 等等。此外，启用E_ALL 错误消息，以便您看到有关此类事情的通知。如果启用了该功能，并且您检查了错误日志，您将看到未定义的索引通知。此外，如果您不顾一切地调试 $_POST/$_GET/whatever 的东西并且不是您控制请求，您可以随时将内容写入文件并检查它。

【讨论】：

是的，之前尝试过，但没有成功。在日志中得到了这个：[10-Dec-2011 06:18:47] PHP 警告：urlencode() 期望参数 1 是字符串，数组在第 22 行给出 xxxxxxxx

您在前几行将 $_YOUR_POST 构建为一个数组，然后尝试将其用作字符串。我认为 http_build_query 可能有用。