$_SERVER['HTTP_REFERER'] problem

[micmac]

Hi all,
I have the following:

$history = $_SERVER['HTTP_REFERER'];
$_SESSION['history'] = $history;
session_register("history");

I also have a login area where i check a users username and password. When the user submits this form the validate.php script comes into play.
All works well except when the user submits incorrect details. This is a snippet of that script:

if ($_POST['sign_in'] == 'true')
{
header ("Location: login.php?error=true");
} 

The problem is that if the above statement is true then i get taken back to the login page and the $_SERVER['HTTP_REFERER'] variable becomes "login.php?error=true", not the original referer.
Is there anyway to store the original HTTP_REFERER or another way alltogether.
Cheers,
micmac

[Drakla]

In the first bit of code where you register the referrer, can you first check to see if the session varible has already been set, and if it has it won't just throw in the value every time, just the first time, which of course after getting bounced from your detail check page won't mean you're referring to your own pages.

I could be oversimplifying, though and totally missing the point.