Where are the files/codes located now? There are lots of possibilities, I suppose, but you'd have to tell us your plan, first.
For example, I have a computer on a LAN that has a folder of *doc files. I have a bit of PHP that reads this folder over the LAN and transforms each filename into a link. Voila`, the docs are acessible to the web. Any doc that gets added is on the web, too.
But, I've been programming in PHP and administering servers for a few years. If you want to come back with some more concrete thoughts, a script framework, even a list of exact steps you think you would use to do what you wanna do, then probably someone here can give you some pointers.
Good luck, and welcome to PHPBuilder!