Paypal API 不适用于简单的 PHP 文件

Question

这是我的 paypal api 代码。我已经验证了两个帐户，付款也已付款...但我仍然收到失败的电子邮件...我无法理解的原因是什么...

<?php
$req = 'cmd=_notify-validate';
foreach ($_POST as $key => $value)
{
    $value = urlencode(stripslashes($value));
    $req .= "&$key=$value";
}

    $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";

    $mode = $paymod_data['MODULE_PAYMENT_PAYPAL_TESTMODE'];

if ($mode == 'test')
{
    $fp = fsockopen ('ssl://www.sandbox.paypal.com', 443, $errno, $errstr, 30);
}
else
{
    $fp = fsockopen ('ssl://www.paypal.com', 443, $errno, $errstr, 30);
}

if (!$fp)
{
    // HTTP ERROR
     die ("Error");
}
else 
{   
    fputs ($fp, $header . $req);
    while (!feof($fp)) {
        $res = fgets ($fp, 1024);
        if (strcmp (trim($res), "VERIFIED") == 0) {
            // check the payment_status is Completed
            // check that txn_id has not been previously processed
            // check that receiver_email is your Primary PayPal email
            // check that payment_amount/payment_currency are correct
            // process payment
            echo strcmp ($res, "VERIFIED");
            echo strcmp (trim($res), "INVALID");
            mail("aks0130@gmail.com","sucess","aa gyi mail","From: demo2312@gmail.com");
        }
        else if (strcmp ($res, "INVALID") == 0) {
            // log for manual investigation
            echo strcmp (trim($res), "INVALID");
            echo strcmp (trim($res), "VERIFIED");
            mail("aks0130@gmail.com","fail","nahi aa gyi mail","From: demo2312@gmail.com");
        }
    }
fclose ($fp);
}
?>

自 3-4 天以来，我一直在尝试正确完成它，但在静脉中.. 所以我回到了 stackoverflow

Answer 1

在用这个东西工作了几天之后，我找到了一个正在运行的 Paypal IPN 脚本，我在这里分享这个脚本，以便像我这样的人在脚本中有问题可以从这里复制这个脚本并粘贴它在那里 PHP notify_url 页面...

    // Reading POSTed data directly from $_POST causes serialization issues with array data in the POST.
    // Instead, read raw POST data from the input stream. 
    $raw_post_data = file_get_contents('php://input');
    $raw_post_array = explode('&', $raw_post_data);
    $myPost = array();
    foreach ($raw_post_array as $keyval) {
      $keyval = explode ('=', $keyval);
      if (count($keyval) == 2)
         $myPost[$keyval[0]] = urldecode($keyval[1]);
    }
    // read the IPN message sent from PayPal and prepend 'cmd=_notify-validate'
    $req = 'cmd=_notify-validate';
    if(function_exists('get_magic_quotes_gpc')) {
       $get_magic_quotes_exists = true;
    } 
    foreach ($myPost as $key => $value) {        
       if($get_magic_quotes_exists == true && get_magic_quotes_gpc() == 1) { 
            $value = urlencode(stripslashes($value)); 
       } else {
            $value = urlencode($value);
       }
       $req .= "&$key=$value";
    }


    // STEP 2: POST IPN data back to PayPal to validate

    $ch = curl_init('https://www.sandbox.paypal.com/cgi-bin/webscr');
    curl_setopt($ch, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
    curl_setopt($ch, CURLOPT_POST, 1);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER,1);
    curl_setopt($ch, CURLOPT_POSTFIELDS, $req);
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 1);
    curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 2);
    curl_setopt($ch, CURLOPT_FORBID_REUSE, 1);
    curl_setopt($ch, CURLOPT_HTTPHEADER, array('Connection: Close'));

    // In wamp-like environments that do not come bundled with root authority certificates,
    // please download 'cacert.pem' from "http://curl.haxx.se/docs/caextract.html" and set 
    // the directory path of the certificate as shown below:
    // curl_setopt($ch, CURLOPT_CAINFO, dirname(__FILE__) . '/cacert.pem');
    if( !($res = curl_exec($ch)) ) {
        // error_log("Got " . curl_error($ch) . " when processing IPN data");
        curl_close($ch);
        exit;
    }
    curl_close($ch);


    // STEP 3: Inspect IPN validation result and act accordingly

    if (strcmp ($res, "VERIFIED") == 0)
    {
        // The IPN is verified, process it:
        // check whether 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 the notification

        // 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'];

        // IPN message values depend upon the type of notification sent.
        // To loop through the &_POST array and print the NV pairs to the screen:
        foreach($_POST as $key => $value)
        {
          echo $key." = ". $value."<br>";
        }


    }
    else if (strcmp ($res, "INVALID") == 0)
    {
        // IPN invalid, log for manual investigation


    }
    ?>