Get webroot in PHP

Question

I am using Apache server for PHP. How can I retrieve my web root in PHP, like http://localhost/testthesis/?

Answer 1

Web root is always just /. You'd never need the hostname or protocol part, and root can be only root of the server, not some folder or file.

If you need some path, like /testthesis/ - there are ways, but it has nothing common with web root.

If you need a filesystem directory for the webroot - it's in the $_SERVER['DOCUMENT_ROOT'] variable.