How do you strip out the domain name from a URL in php?

Admin 1
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Im looking for a method (or function) to strip out the domain.ext part of any URL thats fed into the function. The domain extension can be anything (.com, .co.uk, .nl, .whatever), and the URL thats fed into it can be anything from http://www.domain.com to www.domain.com/path/script.php?=whatever

Whats the best way to go about doing this?

urlparse php
9 Answers

parse_url turns a URL into an associative array:

php > $foo = "http://www.example.com/foo/bar?hat=bowler&accessory=cane";
php > $blah = parse_url($foo);
php > print_r($blah);
Array
(
    [scheme] => http
    [host] => www.example.com
    [path] => /foo/bar
    [query] => hat=bowler&accessory=cane
)
Robert_Elwell_231020

You can use parse_url() to do this:

$url = 'http://www.example.com';
$domain = parse_url($url, PHP_URL_HOST);
$domain = str_replace('www.','',$domain);

In this example, $domain should contain example.com, irrespective of it having www or not. It also works for a domain such as .co.uk

DavidM_21830

You can also write a regular expression to get exactly what you want.

Here is my attempt at it:

$pattern = '/\w+\..{2,3}(?:\..{2,3})?(?:$|(?=\/))/i';
$url = 'http://www.example.com/foo/bar?hat=bowler&accessory=cane';
if (preg_match($pattern, $url, $matches) === 1) {
    echo $matches[0];
}

The output is:

example.com

This pattern also takes into consideration domains such as 'example.com.au'.

Note: I have not consulted the relevant RFC.

user_260880

Following code will trim protocol, domain and port from absolute URL:

$urlWithoutDomain = preg_replace('#^.+://[^/]+#', '', $url);
user_14145550

This function should work:

function Delete_Domain_From_Url($Url = false)
{
    if($Url)
    {
        $Url_Parts = parse_url($Url);
        $Url = isset($Url_Parts['path']) ? $Url_Parts['path'] : '';
        $Url .= isset($Url_Parts['query']) ? "?".$Url_Parts['query'] : '';
    }

    return $Url;
}

To use it:

$Url = "https://stackoverflow.com/questions/176284/how-do-you-strip-out-the-domain-name-from-a-url-in-php";
echo Delete_Domain_From_Url($Url);

# Output: 
#/questions/176284/how-do-you-strip-out-the-domain-name-from-a-url-in-php
user_41101220
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