从给定的URL获取主机名

Question

how to get host name from bellow Example.

I/P: https://stackoverflow.com/users/login | O/P: stackoverflow.com

I/P: stackoverflow.com/users/login | O/P: stackoverflow.com

I/P: /users/login | O/P: (return empty string)

I checked parse_url function, but doesn't return what I need. Since, I'm beginner in PHP, it was difficult for me. If you have any idea, please answer.

Answer 1

you can try this

<?php  

function getHost($Address) { 
   $parseUrl = parse_url(trim($Address)); 
   return trim(isset($parseUrl['host']) ? $parseUrl['host'] : array_shift(explode('/', $parseUrl['path'], 2))); 
} 

echo getHost('http://stackoverflow.com/users/login');