在paypal notify_url页面中，当我使用cmd值作为_cart时，我没有得到任何值。如何在notify_url页面中获取交易详情
<form action="https://www.sandbox.paypal.com/cgi-bin/webscr" method="POST" name="_xclick" id="paypal_form">
<input type="hidden" name="upload" value="1" />
<input type="hidden" name="cmd" value="_xclick" />
<!-- The business email address, where you want to receive the payment -->
<!--<input type="hidden" name="business" value="[email protected]" />-->
<input type="hidden" name="business" value="[email protected]" />
<!-- The customer email address -->
<input type="hidden" name="item_name_1" value="<?php echo ucfirst($couponname); ?>" />
<input type="hidden" name="amount_1" value="<?php echo $total_payable_amount; ?>" />
<!--<input type="hidden" name="currency_code" value="AUD" />-->
<input type="hidden" name="currency_code" value="USD" />
<input type="hidden" name="amount" value="25.58" />
<!-- Where you want to return after PayPal Payment -->
<input type="hidden" name="return" value="http://yes-i-deal.com.au/test/paypal_ipn.php" />
<!-- A back-end notification send to the specific page after successful payment -->
<!--<input type="hidden" name="notify_url" value="http://yes-i-deal.com.au/test/paypal.php" />-->
<input type="hidden" name="notify_url" value="http://yes-i-deal.com.au/test/paypal_ipn.php" />
<!-- Where you want to return after cancel the PayPal Payment -->
<input type="hidden" name="cancel_return" value="http://yes-i-deal.com.au/" />
<input type="hidden" name="custom" value="<?php echo $coupon_id."_".$userid;?>" />
<input type="image" name="submit" src="http://yes-i-deal.com.au/themes/green/images/Buy-Now-Button.png" />
</form>
在我的notify_url页面中，我得到了值
session_start();
require("ipn_cls1.php");
$paypal_info = $_POST;
print_r($paypal_info);
$paypal_ipn = new paypal_ipn($paypal_info);
$payment_status = trim($paypal_info['payment_status']); // Si Completed : tout est OK echo
$payment_amount = trim($paypal_info['mc_gross']);
我在当前项目中遇到与paypal自适应支付相同的问题。我给了我
notify_url为http://mysite.com/payment-success。在这个页面中，我只是编码
$ request = $ _POST;
mail（'myid @ myaccount'，$ request）;
然后我将交易结果发送到我的邮箱查看。
注意，在我的邮件中，我能够看到交易结果，如果我插入数据库，它是插入但我无法在我的页面中看到交易结果。尝试向您的邮件发送交易结果。
创建paypal_ipn.php文件并在其中放置PHP代码。
// Response from Paypal
// read the post from PayPal system and add 'cmd'
$req = 'cmd=_notify-validate';
foreach ($_POST as $key => $value) {
$value = urlencode(stripslashes($value));
$value = preg_replace('/(.*[^%^0^D])(%0A)(.*)/i','${1}%0D%0A${3}',$value);// IPN fix
$req .= "&$key=$value";
}
// assign posted variables to local variables
$data['item_name'] = $_POST['item_name'];
$data['item_number'] = $_POST['item_number'];
$data['payment_status'] = $_POST['payment_status'];
$data['payment_amount'] = $_POST['mc_gross'];
$data['payment_currency'] = $_POST['mc_currency'];
$data['txn_id'] = $_POST['txn_id'];
$data['receiver_email'] = $_POST['receiver_email'];
$data['payer_email'] = $_POST['payer_email'];
$data['custom'] = $_POST['custom'];
$data['invoice'] = $_POST['invoice'];
$data['paypallog'] = $req;
// 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.sandbox.paypal.com', 443, $errno, $errstr, 30);
if (!$fp) {
// HTTP ERROR
} else {
fputs ($fp, $header . $req);
while (!feof($fp)) {
////mail('[email protected]','Step 9','Step 9');
$res = fgets ($fp, 1024);
if (true || strcmp($res, "VERIFIED") == 0) {
////mail('[email protected]','PAYMENT VALID','PAYMENT VALID');
// Validate payment (Check unique txnid & correct price)
$valid_txnid = check_txnid($data['txn_id']);
$valid_price = check_price($data['payment_amount'], $data['item_number']);
// PAYMENT VALIDATED & VERIFIED!
if($valid_txnid && $valid_price){
//----------------- INSERT RECORDS TO DATABASE-------------------------------------
if ($data['invoice']=='basic') {
$price = 39;
} else {
$price = 159;
}
$this->user_model->update_user(
array(
'id' => $data['custom'],
'user_status' => 1,
'payment_date' => date("Y-m-d H:i:s",time()),
'next_payment_date' => date('Y-m-d', strtotime('+32 days')),
'user_package' => $data['invoice'],
'package_price' => $price
)
);
$data2 = array('id' => '',
'txn_id' => $data['txn_id'],
'amount' => $data['payment_amount'],
'mode ' => $data['payment_status'],
'paypal_log' => $data['paypallog'],
'user_id' => $data['custom'],
'created_at' => date('Y-m-d H:i:s',time())
);
$this->db->insert('tbl_paypal_log', $data2);
//----------------- INSERT RECORDS TO DATABASE-------------------------------------
}else{
// Payment made but data has been changed
// E-mail admin or alert user
}
} elseif ($res=='INVALID') {
// PAYMENT INVALID & INVESTIGATE MANUALY!
// E-mail admin or alert user
////mail('[email protected]','PAYMENT INVALID AND INVESTIGATE MANUALY','PAYMENT INVALID AND INVESTIGATE MANUALY');
}
}
fclose ($fp);
}
有一个really good guide到即时付款通知（IPN）并了解它们的工作原理。本指南为您提供了使notify_url正常工作所需的步骤。
Paypal提供good code samples为您做验证响应，这真的很好。您可以使用这些是您自己的起点。