After some research, I've discovered a method of URL redirection that involves siphoning everything through a single page (http://www.alistapart.com/stories/succeed/).
I'd like to use this with my forum. In my setup, every link to my site gets routed to the file index.php, which then parses the URL and includes the proper page.
It works outside of the forum. Real addresses show pages, and bad ones show error messages. However, the forum only gives me a blank page. If I print() a test of whether the fileExists() right before making the include, I can see a "1." But after that, nada.
I figure there must be something about the forum design that makes what I'm trying impossible. If it's not too much trouble, I was wondering, as far as technical theory goes, what am I not getting? What is it that makes this app impossible to nest inside a PHP include()?
(Naturally, if my hunch is wrong and this is possible, let me know this, instead.)