How can I find an application's base url?

Question

I\'d like to find the base url of my application, so I can automatically reference other files in my application tree...

So given a file config.php in the base of my

Answer 1

This works like a charm for me, anywhere I deploy, with or without rewrite rules:

$baseDir = 'http://'.$_SERVER['HTTP_HOST'].(dirname($_SERVER['SCRIPT_NAME']) != '/' ? dirname($_SERVER["SCRIPT_NAME"]).'/' : '/');