PHP how to find the root url

[pwired]

Hi,

To find the root url of a website we can use the processwire api

I am looking for a php way to get the root url of a website (so not with the api)

I have not found a clear solution for it on php.net and neither on stackoverflow

This is the best I could find:

// DO WE HAVE HTTP OR HTTPS
$protocol = empty($_SERVER['HTTPS']) ? 'http' : 'https';

// example php code for http

$root_url = "http://".$_SERVER['HTTP_HOST'];
$root_url .= str_replace(basename($_SERVER['SCRIPT_NAME']),"",$_SERVER['SCRIPT_NAME']);

So far this works but I am not sure if this is the real php fool proof way.

Does anyone know of a php fool proof way to get the root url
that works for localhost and online site ?

 

 

[bernhard]

You should get some good inspiration here: https://github.com/processwire/processwire/blob/d8945198f4a6a60dab23bd0462e8a6285369dcb9/wire/core/ProcessWire.php#L410-L459 ?