VB_AREA or THIS_SCRIPT must be defined to continue...

[khan3332]

PHP Code:

<?php

require("../testforum/includes/functions_login.php");

require('../testforum/includes/init.php');

echo verify_authentication("hahayo", "hahayoyoyo", "", "", true, true);

?>

im trying to use the verify_auth function, but when i run the script from another directory, it gives me

VB_AREA or THIS_SCRIPT must be defined to continue

what does this mean....