【发布时间】：2011-09-07 07:08:18
【问题描述】：
我正在开发一个使用 PayPal 作为支付网关的轻量级电子商务解决方案。但是，我的 IPN 回调不断返回 INVALID 响应。我什至尝试使用 PayPal 提供的示例 PHP 脚本：
// 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 ('ssl://www.paypal.com', 443, $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 ($res, "VERIFIED") == 0) {
// check the payment_status is Completed
// check that txn_id has not been previously processed
// check that receiver_email is your Primary PayPal email
// check that payment_amount/payment_currency are correct
// process payment
}
else if (strcmp ($res, "INVALID") == 0) {
// log for manual investigation
}
}
fclose ($fp);
}
但正如我所说，我不断收到INVALID 的回复。这实际上是我使用将响应写入日志文件的 PHP 类得到的响应：
[2011-06-02 19:18:49] - FAIL: IPN Validation Failed.
IPN POST data from PayPal:
test_ipn=1,
payment_type=instant,
payment_date=11:07:43 Jun 02, 2011 PDT,
payment_status=Completed,
payer_status=verified,
first_name=John,
last_name=Smith,
payer_email=buyer@paypalsandbox.com,
payer_id=TESTBUYERID01,
business=seller@paypalsandbox.com,
receiver_email=seller@paypalsandbox.com,
receiver_id=TESTSELLERID1,
residence_country=US,
item_name1=something,
item_number1=AK-1234,
quantity1=1,
tax=2.02,
mc_currency=USD,
mc_fee=0.44,
mc_gross=15.34,
mc_gross_1=12.34,
mc_handling=2.06,
mc_handling1=1.67,
mc_shipping=3.02,
mc_shipping1=1.02,
txn_type=cart,
txn_id=4362187,
notify_version=2.4,
custom=xyz123,
invoice=abc1234,
charset=windows-1252,
verify_sign=AjbdIvvDAW2fh1O9jAbEym4myX.WAV7-jCEiEWMqoSkewvM6L3Co6oUQ
这是来自官方的PayPal IPN 测试工具。所以 PayPal 的示例代码和测试工具之间的某些东西导致我的脚本失败。有人有什么想法吗？
【问题讨论】：
标签： php paypal paypal-ipn paypal-sandbox