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Ok after 2 hours of being totally confused about why some code which I copied straight out of a book doesn't work, I decided maybe some of you could help me.
What I did is took this one line of code and threw it into a a file called text.php
are you running PHP 4.2.0? 'cause if so then globals are not auto registered. you can either change the php.ini to reflect this or access the variable through $_GET['author']