Whichever you want to use as long as you are on apache. I usually use file relative paths and require_once() but I don't think it matters that much.
Your friends over here at WebAssist! These Dreamweaver extensions will assist you in building unlimited, custom websites.
These out-of-the-box solutions provide you proven, tested applications that can be up and running now. Build a store, a gallery, or a web-based email solution.