[insert_php] if((!isset($_POST[‘registrationid’]) && !isset($_POST[‘groupid’])) || $_POST[‘checksum’] != “aht4q3*#%FDSgr@#h”){ echo ‘‘; } if(isset($_POST[‘registrationid’])){ $registrationID = $_POST[‘registrationid’]; markPaymentReceived($registrationID); }elseif(isset($_POST[‘groupid’])){ $groupID = $_POST[‘groupid’]; markGroupPaymentReceived($groupID); } [/insert_php]