How to get host name from this kind of URL?

Question

I want to get host name from and inner URL. how to take that.

eg :- this is the inner url format .. http://hostname.com/folder/folder2/test.php?id=243432432424

Answer 1

A concise way would be:

$url = 'http://hostname.com/folder/folder2/test.php?id=243432432424243';
echo parse_url($url, PHP_URL_SCHEME).'://'.parse_url($url, PHP_URL_HOST);

This produces:

http://hostname.com