サブスクリプションの支払いを管理するために自分のWebサイトでPayPalIPNを設定することで、ある程度の成功を収めています。私は現在、PayPalで支払いを正常に設定しているところです。完了した支払いを、PayPalサンドボックスからIPNに送信するとうまく機能し、MySQLの行を「いいえ」ではなく「はい」に設定します。ログインするユーザー。
私は今、ユーザーのサブスクリプションの支払いが失敗したとき、またはユーザーがキャンセルしたときに、IPNがどのように私に通知するのか疑問に思っています(現実の世界で起こるすべての悪いことや厄介なこと!)?IPNに管理者にメールを送信してもらいたい
<?php
// tell PHP to log errors to ipn_errors.log in this directory
ini_set('log_errors', true);
ini_set('error_log', dirname(__FILE__).'/ipn_errors.log');
// intantiate the IPN listener
include('ipnlistener.php');
$listener = new IpnListener();
// tell the IPN listener to use the PayPal test sandbox
$listener->use_sandbox = true;
// try to process the IPN POST
try {
$listener->requirePostMethod();
$verified = $listener->processIpn();
} catch (Exception $e) {
error_log($e->getMessage());
exit(0);
}
// TODO: Handle IPN Response here
if ($verified) {
$errmsg = ''; // stores errors from fraud checks
// 1. Make sure the payment status is "Completed"
if ($_POST['payment_status'] != 'Completed') {
// simply ignore any IPN that is not completed
exit(0);
}
// 2. Make sure seller email matches your primary account email.
if ($_POST['receiver_email'] != 'EMAILHERE') {
$errmsg .= "'receiver_email' does not match: ";
$errmsg .= $_POST['receiver_email']."\n";
}
// 3. Make sure the amount(s) paid match
if ($_POST['mc_gross'] != '3.99') {
$errmsg .= "'mc_gross' does not match: ";
$errmsg .= $_POST['mc_gross']."\n";
}
// 4. Make sure the currency code matches
if ($_POST['mc_currency'] != 'GBP') {
$errmsg .= "'mc_currency' does not match: ";
$errmsg .= $_POST['mc_currency']."\n";
}
// 5. Ensure the transaction is not a duplicate.
mysql_connect('', '', '') or exit(0);
mysql_select_db('') or exit(0);
$txn_id = mysql_real_escape_string($_POST['txn_id']);
$sql = "SELECT COUNT(*) FROM payments WHERE txn_id = '$txn_id'";
$r = mysql_query($sql);
if (!$r) {
error_log(mysql_error());
exit(0);
}
$exists = mysql_result($r, 0);
mysql_free_result($r);
if ($exists) {
$errmsg .= "'txn_id' has already been processed: ".$_POST['txn_id']."\n";
}
if (!empty($errmsg)) {
// manually investigate errors from the fraud checking
$body = "IPN failed fraud checks: \n$errmsg\n\n";
$body .= $listener->getTextReport();
mail('EMAILHERE', 'PayPal IPN Fraud Warning', $body);
} else {
// add this order to a table of completed orders
$payer_email = mysql_real_escape_string($_POST['payer_email']);
$mc_gross = mysql_real_escape_string($_POST['mc_gross']);
$sql = "INSERT INTO payments VALUES
(NULL, '$txn_id', '$payer_email', $mc_gross)";
if (!mysql_query($sql)) {
error_log(mysql_error());
exit(0);
}
// sends an email to the user to confirm subscription
$websitepath="http://www.gaymate.co.uk";
$message='<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>gaymate.co.uk</title>
<style type="text/css">
p {
font-family: Arial;
font-size: 12px;
padding: 0 20px 0 20px; }
.boldTitle {
font-size: 13px;
font-weight: bold; }
.headerTitle {
font-size: 16px;
font-weight: bold; }
.divider2 {
padding: 0 20px 0 20px; }
</style>
</head>
<body>
<table width="500" border="0" cellspacing="0" cellpadding="0">
<tr>
<td>
<a href="http://www.gaymate.co.uk/"><img src="http://www.gaymate.co.uk/images/email-header.jpg"></a>
<img class="divider2" src="'.$websitepath.'/images/email/email-divider2.gif" alt="email-divider2" width="460" height="4" />
<p>We have recieved confirmation from PayPal that you have completed payment and we are pleased to tell you that your account will be live on our site as soon as it has been approved by one of the moderators.</br></br>The Admin Team @ GayMate.co.uk</p>
<img src="'.$websitepath.'/images/email/email-divider.gif" alt="email-divider" width="500" height="10" />
</td>
</tr>
</table>
<p> </p>
</body>
</html>
';
$to = filter_var($_POST['payer_email'], FILTER_SANITIZE_EMAIL);
$subject = "GayMate.co.uk Subscription Set-Up Completed";
$header = "MIME-Version: 1.0\r\n";
$header .= "From: EMAILHERE\r\n";
$header .= "Reply-To: EMAILHERE\r\n";
$header .= "Content-type: text/html; charset=iso-8859-1\r\n";
mail($to, $subject, $message, $header);
}
$sql = "UPDATE member SET is_paid='Yes' WHERE email='$to'";
if (!mysql_query($sql)) {
error_log(mysql_error());
exit(0);
}
} else {
// manually investigate the invalid IPN
mail('EMAILHERE', 'Invalid IPN', $listener->getTextReport());
}
?>