Dynamic PHP links

Hi, I'm new to PHP and I'd appreciate your advice a lot. I'm trying to use dynamic PHP links instead of plain HTML and I'm gonna use something like this: File "index.php": <? <a href=index.php?content=story.htm>story</a><br> <a href=index.php?content=about.htm>about</a><br> <? if(isset($content)): include $content; else: include "about.htm"; endif; ?> But a guy told me it is not preferable to use this method because of security considerations. I'm sure there is a common way of building dynamic links; am I on wrong way? Any help would be appreciated. Thank you in advance Best regards, Eduard Grigoryan ************************* Armenian Freenet Catalog http://freenet.am/~edik_g http://armfn.net/~edik_g