$_GET question

From: Barton (bc173_at_NOSPAMMMhotmail.com)
Date: 12/29/03 

Date: Mon, 29 Dec 2003 15:41:19 +0100

Hello,

Because 'Global Variables' is turned off in my PHP config, I need to
catch the variables from an url in this way:

$bla = $_GET('variable_name');

Now, the problem is that if there is no such variable set in the url
their is still something assigned to the variable $bla which causes
problems in my script. How can I avoid this?

Grtz,

Barton