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<div class="codebody" id="code76162">
// 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);
}
?>