- Does this theory sound correct?
So it seems.
- Assuming I need to use functions in my site's framework, what's the
best way to make this work?
I suppose you could do some strange trickeries to avoid the function, like
<?Php do_data() render_page(); if ($show_wiki) require("index.php"); ?>
However, i think you're using the wrong approach here. You could allow the users to go to /wiki/ with the wiki having an Skin to resemble your site's skin (you can even callback to your site's code). http://www.mediawiki.org/wiki/Manual:Skinning
Also, if you only want to convert wikitext to html, you can use the Parser class in your code.