php - Paypal Ipn 不工作代码停止

Question

我的 paypal ipn 代码在一段时间后停止工作，或者似乎没有从一段时间内收集正确的信息，或者信息未设置。有没有人知道什么应该是这行代码的正确输入。这是代码:

 while (!feof($fp)) {
 $res = fgets ($fp, 1024);

上面的代码是否与下面的代码一起正常运行。这是代码:

  $fp = fsockopen ('ssl://www.sandbox.paypal.com', 443, $errno, $errstr, 30);   

这里是大部分代码:

// Response from Paypal

// read the post from PayPal system and add 'cmd'
$req = 'cmd=_notify-validate';
foreach ($_POST as $key => $value) {
    $value = urlencode(stripslashes($value));
    $value = preg_replace('/(.*[^%^0^D])(%0A)(.*)/i','${1}%0D%0A${3}',$value);// IPN fix
    $req .= "&$key=$value";
}

// assign posted variables to local variables
$data['item_name']          = $_POST['item_name'];
$data['item_number']        = $_POST['item_number'];
$data['payment_status']     = $_POST['payment_status'];
$data['payment_amount']     = $_POST['mc_gross'];
$data['payment_currency']   = $_POST['mc_currency'];
$data['txn_id']             = $_POST['txn_id'];
$data['receiver_email']     = $_POST['receiver_email'];
$data['payer_email']        = $_POST['payer_email'];
$data['custom']             = $_POST['custom'];

// 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.sandbox.paypal.com', 443, $errno, $errstr, 30); 

if (!$fp) {
    // HTTP ERROR
} else {    

    fputs ($fp, $header . $req);
    while (!feof($fp)) {
        $res = fgets ($fp, 1024);
        if (strcmp($res, "VERIFIED") == 0) {

有谁知道为什么不通过这段paypal ipn代码？

Answer 1

我找到了这个脚本: https://github.com/paypal/ipn-code-samples/blob/master/paypal_ipn.php

我遇到了同样的问题，没有得到任何回应。决定改用 cURL 进行研究。这个脚本完美地工作。我确实需要安装 cURL 并下载脚本注释中引用的证书。