[thelist] Q on $_SERVER['HTTP_REFERER']

[apathetic]

> When I do this:
>    print_r ( $_SERVER );
> I do not get:
>   [HTTP_REFERER]

HTTP_REFERER only appears when the user has actually arrived at the
page by clicking through from somewhere else.  If the value doesn't
appear in the _SERVER array, you can assume that your page has been
accessed directly or (less likely) that the browser isn't providing
the correct referrer information.

To test this, simply create a test page with a link to your script,
and click the link.

Tim

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