whmcs {php}base64decode tickets

create a .php file with this content:

<?php 
$checkvars = array('subject','message'); 
foreach ($checkvars AS $checkvar){
	if(strpos($_REQUEST[$checkvar],'{php}') !== false){
		header('Location: http://www.interpol.int/');
		die('now'); 
		exit;
	}
}
?>

and place it into whmcs /includes/hooks/ directory