I found out that is nessacary to define a listener-Skript an set the Listener-URL to the IPN options. I wrote this script, but even when the payment was successful there is no update:
<?php
/*global $theme;
get_header();*/
include (“wp-config.php”);
global $wpdb;
//Build the data to post back to Paypal
$postback = ‘cmd=_notify-validate’;
// go through each of the posted vars and add them to the postback variable
foreach ($_POST as $key => $value) {
$value = urlencode(stripslashes($value));
$postback .= “&$key=$value”;
}
// build the header string to 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”;
$header .= “Content-Length: ” . strlen($postback) . “\r\n\r\n”;
// Send to paypal or the sandbox depending on whether you’re live or developing
// comment out one of the following lines
//$fp = fsockopen (‘ssl://www.sandbox.paypal.com’, 443, $errno, $errstr, 30);//open the connection
$fp = fsockopen (‘ssl://www.paypal.com’, 443, $errno, $errstr, 30);
// or use port 443 for an SSL connection
//$fp = fsockopen (‘ssl://www.paypal.com’, 443, $errno, $errstr, 30);
if (!$fp)
{
// HTTP ERROR Failed to connect
//error handling or email here
}
else // if we’ve connected OK
{
fputs ($fp, $header . $postback);//post the data back
while (!feof($fp))
{
$response = fgets ($fp, 1024);
//It’s verified
if(strcmp($response,”VERIFIED”) == 0){
// assign posted variables to local variables, apply urldecode to them all at this point as well, makes things simpler later
$payment_status = $_POST[‘payment_status’];//read the payment details and the account holder
if($payment_status == ‘Completed’)
{
$unique_id = $_SESSION[‘unique_id’];
$abfrage = “UPDATE eigene_angebote SET bezahlt = 1, bezahlt_am = NOW()
WHERE unique_id='”.$unique_id.”‘”;
$result=$wpdb->get_results($abfrage, ARRAY_A);
}
else if($payment_status == ‘Denied’ || $payment_status == ‘Failed’ || $payment_status == ‘Refunded’ || $payment_status == ‘Reversed’ || $payment_status == ‘Voided’)
{
}
else if($payment_status == ‘In-Progress’ || $payment_status == ‘Pending’ || $payment_status == ‘Processed’)
{
//Do something
}
else if($payment_status == ‘Canceled_Reversal’)
{
//Do something
}
}
else if (strcmp ($response, “INVALID”) == 0)
{
//the Paypal response is INVALID, not VERIFIED
}
} //end of while
fclose ($fp);
}
?>
