Get Root Domain Name and subdomain Of Website using PHP - php

Question

I am using this function code
public function getRootDomain($domain)
{
$domain = explode('.', $domain);
$tld = array_pop($domain);
$name = array_pop($domain);
$domain = "$name.$tld";
return $domain;
}
And the output i get is something like example.com
but i want to show m.example.com or www.example.com
Help related this ..thankx

Answer 1

Use parse_url(). You would want the host:
<?php
$url = '//www.example.com/path?googleguy=googley';
// Prior to 5.4.7 this would show the path as "//www.example.com/path"
var_dump(parse_url($url));
?>
The above example will output:
array(3) {
["host"]=>
string(15) "www.example.com"
["path"]=>
string(5) "/path"
["query"]=>
string(17) "googleguy=googley"
}
You would use it like so:
public function getRootDomain($domain)
{
$parts = parse_url($domain);
return $parts['host'];
}
If you're using PHP 5.4+:
public function getRootDomain($domain)
{
return parse_url($domain)['host'];
}