如何解决需要贝宝 IPN 监听器帮助
大家好， 我在使用 PayPal IPN 时遇到了一些麻烦。看来 PayPal 确实到达了我的 PHP 侦听器并获得了 200 的回报，一旦交易完成，我将返回到我的网站并收到一条肯定消息，即我的交易成功，但该帐户并未记入所购买的商品。我几乎碰壁了，我不确定可能是什么问题。我使用的是过时的命令吗？有什么不寻常的吗？感谢您的时间！
<?php
require_once('globals_nonauth.php');
// read the post from PayPal system and add 'cmd'
$req = 'cmd=_notify-validate';
foreach ($_POST as $key => $value)
{
$value = urlencode(stripslashes($value));
$req .= "&$key=$value";
}
// 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";
$fp = fsockopen('www.paypal.com',80,$errno,$errstr,30);
// 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 = $_POST['payer_email'];
if (!$fp)
{
// HTTP ERROR
}
else
{
fputs($fp,$header . $req);
while (!feof($fp))
{
$res = fgets($fp,1024);
if (strcmp($res,"VERIFIED") == 0)
{
$txn_db = $db->escape(stripslashes($txn_id));
// check the payment_status is Completed
if ($payment_status != "Completed")
{
fclose($fp);
die("");
}
$dp_check =
$db->query(
"SELECT COUNT(`dpID`)
FROM `dps_accepted`
WHERE `dpTXN` = '{$txn_db}'");
if ($db->fetch_single($dp_check) > 0)
{
$db->free_result($dp_check);
fclose($fp);
die("");
}
$db->free_result($dp_check);
// check that txn_id has not been previously processed
// check that receiver_email is your Primary PayPal email
if ($receiver_email != $set['paypal'])
{
fclose($fp);
die("");
}
// check that payment_amount/payment_currency are correct
if ($payment_currency != "USD")
{
fclose($fp);
die("");
}
// parse for pack
$packr = explode('|',$item_name);
if (str_replace("www.","",$packr[0])
!= str_replace("www.",$_SERVER['HTTP_HOST']))
{
fclose($fp);
die("");
}
if ($packr[1] != "DP")
{
fclose($fp);
die("");
}
$pack = $packr[2];
if ($pack != 1 and $pack != 2 and $pack != 3 and $pack != 4
and $pack != 5)
{
fclose($fp);
die("");
}
if (($pack == 1 || $pack == 2 || $pack == 3)
&& $payment_amount != "3.00")
{
fclose($fp);
die("");
}
if ($pack == 4 && $payment_amount != "5.00")
{
fclose($fp);
die("");
}
if ($pack == 5 && $payment_amount != "10.00")
{
fclose($fp);
die("");
}
// grab IDs
$buyer = abs((int) $packr[3]);
$for = $buyer;
// all seems to be in order,credit it.
if ($pack == 1)
{
$db->query(
"UPDATE `users` AS `u`
LEFT JOIN `userstats` AS `us`
ON `u`.`userid` = `us`.`userid`
SET `u`.`money` = `u`.`money` + 5000,`u`.`crystals` = `u`.`crystals` + 50,`us`.`IQ` = `us`.`IQ` + 50,`u`.`donatordays` = `u`.`donatordays` + 30
WHERE `u`.`userid` = {$for}");
$d = 30;
$t = "standard";
}
else if ($pack == 2)
{
$db->query(
"UPDATE `users` AS `u`
SET `u`.`crystals` = `u`.`crystals` + 100,`u`.`donatordays` = `u`.`donatordays` + 30
WHERE `u`.`userid` = {$for}");
$d = 30;
$t = "crystals";
}
else if ($pack == 3)
{
$db->query(
"UPDATE `users` AS `u`
LEFT JOIN `userstats` AS `us`
ON `u`.`userid` = `us`.`userid`
SET `us`.`IQ` = `us`.`IQ` + 50,`u`.`donatordays` = `u`.`donatordays` + 30
WHERE `u`.`userid` = {$for}");
$d = 30;
$t = "iq";
}
else if ($pack == 4)
{
$db->query(
"UPDATE `users` AS `u`
LEFT JOIN `userstats` AS `us`
ON `u`.`userid` = `us`.`userid`
SET `u`.`money` = `u`.`money` + 15000,`u`.`crystals` = `u`.`crystals` + 75,`us`.`IQ` = `us`.`IQ` + 80,`u`.`donatordays` = `u`.`donatordays` + 55
WHERE `u`.`userid` = {$for}");
$d = 55;
$t = "fivedollars";
}
else if ($pack == 5)
{
$db->query(
"UPDATE `users` AS `u`
LEFT JOIN `userstats` AS `us`
ON `u`.`userid` = `us`.`userid`
SET `u`.`money` = `u`.`money` + 35000,`u`.`crystals` = `u`.`crystals` + 160,`us`.`IQ` = `us`.`IQ` + 180,`u`.`donatordays` = `u`.`donatordays` + 115
WHERE `u`.`userid` = {$for}");
$d = 115;
$t = "tendollars";
}
// process payment
event_add($for,"Your \${$payment_amount} Pack {$pack} Donator Pack has been successfully credited to you.",$c);
$db->query(
"INSERT INTO `dps_accepted`
VALUES(NULL,{$buyer},{$for},'$t'," . time()
. ",'$txn_db')");
}
else if (strcmp($res,"INVALID") == 0)
{
}
}
fclose($fp);
}
解决方法
对于PayPal收到200的情况，IPN已经发送成功，需要调试代码。将每一步记录到文件中，使用模拟器或沙箱模式事务测试 IPN（检查 test_ipn=1，使用它来确定是否回发到“沙箱”端点，并且如果测试 IPN 没有中断，请不要中断't verify--just log it)--从而使用您的日志输出，找出挂断的位置，直到成功处理您的业务逻辑。
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