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

Relative paths

For your webservers root directory, use:

$folder = '/';

For the directory of the retrieved script, use:

$folder = './';

Absolute paths (from the client's perspective)

For your webservers root directory, use:

$protocol = $_SERVER['HTTPS'] == '' ? 'http://' : 'https://';
$folder = $protocol . $_SERVER['HTTP_HOST'];

For the directory of the retrieved script, use:

$protocol = $_SERVER['HTTPS'] == '' ? 'http://' : 'https://';
$folder = $protocol . $_SERVER['HTTP_HOST'] . '/' . basename($_SERVER['REQUEST_URI']);

Answer 2

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.

Answer 3

What you're looking for is not a webroot but rather a URL.

You can get your current URL like so:

$protocol = strpos($_SERVER['SERVER_SIGNATURE'], '443') !== false ? 'https://' : 'http://';
$url = $protocol . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];

Answer 4

Here is one way of doing it:

$web_root = "http://".$_SERVER['HTTP_HOST'].dirname($_SERVER['PHP_SELF'])."/";

OUTPUT -->http://website.com/parent_folder/