php - PayPal 在交易成功后不返回任何变量

Question

我正在尝试从 paypal 成功交易后在返回页面上检索值。我已经启用了 Autoreturn 并为其指定了 url。我的代码以前可以工作，它显示了所有值，但它突然停止工作，现在只返回空白。请记住，我是 php 的新手。

这是我的代码:

<form action='https://www.sandbox.paypal.com/cgi-bin/webscr' method='post' >

                    <!-- Identify your business so that you can collect the payments.  --> 
                    <input type='hidden' name='business' value='business3@eparking.com'>

                    <!-- Specify a Buy Now button.  --> 
                    <input type='hidden' name='cmd' value='_xclick'>

                    <!-- Specify details about the item that buyers will purchase.  --> 
                    <input type='hidden' name='item_number' value='". $offenceid ."'>
                    <input type='hidden' name='item_name' value='". $offencetype ."'>
                    <input type='hidden' name='amount' value='". $charge ."'>
                    <input type='hidden' name='currency_code' value='SGD'>
                    <input type='hidden' name='rm' value='2'>
                    <input type='hidden' name='return_url' value='http://mp25.bit-mp.biz/paymentReturn.php'>


                    <!-- Specify the Pages for Successful payment & failed Payment-->

                    <input type='hidden' name='return' value='http://mp25.bit-mp.biz/paymentReturn.php'/>

                    <input type='hidden' name='cancel_return' value='http://mp25.bit-mp.biz/userFines.php'/>

                    <!--  Display the payment button.  -->
                    <input type='image' name='submit' src='images/paynow.png' alt='PayPal – The safer, easier way to pay online'>

                    </form>

paymentReturn.php

// STEP 1: Read POST data

// reading posted data from directly from $_POST causes serialization 
// issues with array data in POST
// reading raw POST data from input stream instead. 
$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 post from PayPal system and add 'cmd'
$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) {
    // 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 payment

    // 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'];

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

谢谢。

Answer 1

我遇到了同样的问题。

解决方案是从 paypal 帐户设置中启用“付款数据传输”选项。(附截图)

欢迎您!