Question

编辑：我理解未定义的变量是什么，而不是问题。为什么我在他们的文档中找到的paypal IPN没有定义变量

＆＃13;

$payment_status = $_POST['payment_status'];

＆＃13;

我一直试图在我的网站上设置捐款按钮。我在paypal打开了IPN并设置了一个沙盒。我希望它做的是：通过捐赠按钮将用户发送给PayPal捐赠金额：

＆＃13;

<form action="https://www.sandbox.paypal.com/cgi-bin/webscr" method="post" target="_top">
<input type="hidden" name="cmd" value="_s-xclick">
<input type="hidden" name="hosted_button_id" value="XXXXXXXXXXX">
<input type="image" src="https://www.sandbox.paypal.com/en_US/i/btn/btn_donateCC_LG.gif" border="0" name="submit" alt="PayPal - The safer, easier way to pay online!">
<img alt="" border="0" src="https://www.sandbox.paypal.com/en_US/i/scr/pixel.gif" width="1" height="1">
</form>

＆＃13;

捐赠完成后，我当然希望Paypal确认已完成捐赠。据我所知，我需要使用IPN。

所以我发现这个指南因此我的新IPN文件是：

<?php
session_start();
// STEP 1: read POST data
// 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
    $ch = curl_init('https://ipnpb.sandbox.paypal.com/cgi-bin/webscr');
    curl_setopt($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);


    // inspect IPN validation result and act accordingly
    if (strcmp ($res, "VERIFIED") == 0) {
        // The IPN is verified, process it
    } else if (strcmp ($res, "INVALID") == 0) {
        // IPN invalid, log for manual investigation
    }

    // 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
        $payment_status = $_POST['payment_status'];
        echo $payment_status;

        $_SESSION['payment_status'] = $payment_status;

    } else if (strcmp ($res, "INVALID") == 0) {
        // IPN invalid, log for manual investigation
        echo "The response from IPN was: <b>" .$res ."</b>";
    }
?>

捐赠成功后，我在paypal中设置发送到此页面：

success.php

<?php

session_start();

echo $_SESSION['payment_status'];

?>

当成功捐赠测试时，我收到错误：

未定义的索引＆＃39; payment_status＆＃39;

是因为我在IPN搞砸了什么？或者

使用paypal IPN与PHP

0 个答案: