string - Paypal Success 交易返回值为空 - 有时

Question

我的实时站点中的贝宝集成存在问题。

对于 90% 的交易，我没有遇到任何问题。有时只有我面临以下问题。

问题：交易成功后，我没有收到诸如交易 ID、消息等 Pay pal 值。所有值都显示为空。它仅适用于 10% 的交易。请告诉我可能是什么问题。查不出原因

提前致谢..

Answer 1

$paypal_email = '5345345345345f';

$cur_dir='http://'.$_SERVER['SERVER_NAME'] . dirname($_SERVER['REQUEST_URI']);

$return_url = $cur_dir.'/paymentsucess.php'; 

$cancel_url = $cur_dir.'/payment-not-sucess.php';

$notify_url = $cur_dir.'/payments.php';


extract($_POST);

$item_name = $exam_name;

$item_amount = $amount;
$userid=$userid;


if (!isset($_POST["txn_id"]) && !isset($_POST["txn_type"])){
$querystring = "?business=".urlencode($paypal_email)."&";

$querystring .= "item_name=".urlencode($item_name)."&";

$querystring .= "amount=".urlencode($item_amount)."&";



//loop for posted values and append to querystring

foreach($_POST as $key => $value){

    $value = urlencode(stripslashes($value));

     $querystring .= "$key=$value&";

}


$querystring .= "return=".urlencode(stripslashes($return_url))."&";

$querystring .= "cancel_return=".urlencode(stripslashes($cancel_url))."&";

$querystring .= "notify_url=".urlencode($notify_url);
 header('location:https://www.paypal.com/cgi-bin/webscr'.$querystring);
exit();
}else{
$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";

}

$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'];

$data['userid']             = $_POST['userid'];

// 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);



if (!$fp) {

    // HTTP ERROR

} else {

fputs ($fp, $header . $req);

    while (!feof($fp)) {

        $res = fgets ($fp, 1024);

        if (strcmp ($res, "VERIFIED") == 0) {



            // Validate payment (Check unique txnid & correct price)

            $valid_txnid = check_txnid($data['txn_id']);

            $valid_price = check_price($data['payment_amount'], $data['item_number']);

            // PAYMENT VALIDATED & VERIFIED!

            if($valid_txnid && $valid_price){



                $orderid = updatePayments($data);

                if($orderid){

                }else{


                }

            }else{


            }

        }else if (strcmp ($res, "INVALID") == 0) {

        }

    }

fclose ($fp);

}

}