On how to use php_include_start with Portals

[kall]

Ok, so I have something that needs to be called in my php include start template.

The instructions say to use:

PHP Code:

require_once("./includes/the_file_to_be_included.php"); 


That won't work on any page outside the /forums/ directory/subdomain, correct?

My answer was to use:

PHP Code:

require_once("http://forums.nzboards.com/includes/the_file_to_be_included.php"); 


Does/will that cause problems at all?

The same question applies to

PHP Code:

include("./include/the_file_to_be_included.php""); 


PHP Code:

include("http://forums.nzboards.com/includes/the_file_to_be_included.php");