PHP Notice: Undefined index

I do not know why I am getting this error. I need to access 'var' in page.php and I have used this line of code.

Line 6 is
$var=$HTTP_GET_VARS['var'];

PHP Notice: Undefined index: var in c:\inetpub\wwwroot\viewer_select\page.php on line 6

Does anybody know why? How do I suppress this Notice?

Thanks

Presumably you've just entered page.php as your URL in the browser.

You are getting the error because a get variable called var does not exist.

Try "page.php?var=xyz" as your URL and the error should go.

Check it exists first

if ($HTTP_GET_VARS['var'])
$var = $HTTP_GET_VARS['var'];

to avoid the error or turn off E_NOTICES in error level setting

hth

Thanks.
I'll try this.