How to include file outside document root?

Question

What I want do to is to include \'file1.php\' from \'domain1\' into \'file2.php\' on \'domain2\'. So what I figured I should do is something like this:

file2         


        

Answer 1

What happens if you try to require a different file:

// test.php


// your file
require_once('test.php');

Does that work? If so, put test.php in the other location and try it again. Does it still work?