if (isset($_GET['tx'])) {
$req = 'cmd=_notify-synch';

$tx_token = $_GET['tx'];
$auth_token = "AAAAA";
$req .= "&tx=$tx_token&at=$auth_token";

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, "https://$pp_hostname/cgi-bin/webscr");
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_RETURNTRANSFER,1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $req);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 1);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 2);
curl_setopt($ch, CURLOPT_HTTPHEADER, array("Host: $pp_hostname"));
$res = curl_exec($ch);
curl_close($ch);
if(!$res){
echo "Overenie vašej platby zlyhalo!";
}else{
$lines = explode("\n", trim($res));
$keyarray = array();
$success = false;
$order = null;
if (strcmp ($lines[0], "SUCCESS") == 0) {
for ($i = 1; $i < count($lines); $i++) {
$temp = explode("=", $lines[$i],2);
$keyarray[urldecode($temp[0])] = urldecode($temp[1]);
}
$success = true;
if ($keyarray["payment_status"]
/// atd