PHP require file from top directory

Question

I have several subdomains contained in their own directory above my root site, and an assets folder in my root directory. For example:

/
/assets/
/forums/
/b         


        

Answer 1

You have 2 solutions. You can either use the full URL to the file, for instance if your file is in the 'lib' directory you can use: require_once ('http://www.example.com/lib/myfile.php')

or

You can try the $_SERVER['DOCUMENT_ROOT'] function in PHP but this isnt always fool proof.