Help with Passing UserData to non-VB Pages

[ptmuldoon]

I basically understand how to pass the user data to non-VB pages, but after doing so, I have an issue with a $_GET variable stops working.

I have the below to get the user data:

PHP Code:

$curdir = getcwd ();
chdir('../forum');
require_once('../forum/global.php');
chdir ($curdir);

$userdata = $vbulletin->userinfo;

if ($userdata) 
{
    //Do something
}

// And now my Get Page Variable stops working?

$cpage = $_GET['page'];  //Now why did this stop working?

// If I comment out the require_once, and leave the change
// of directories, the $_GET works?