How can I use PHP to get just the base name from a long url?

Question

If I have a variable that contains a URL, then how can I get the base URL? That is,

$url = 'http://www.domain.com/some/stuff/that/I/do/not/want/';
$base_url = some_clever_function($url);
// $base_url is now set equal to 'domain.com'

How can I do this?

possible duplicate of [Parsing Domain From URL In PHP](http://stackoverflow.com/questions/276516/parsing-domain-from-url-in-php) — nickb, Aug 06 '12 at 19:09

score 12 · Accepted Answer · edited Aug 06 '12 at 19:13

12

parse_url will be able to extract the host for you.

It has the second argument with the help of which you can extract different parts of URL. To extract host, use parse_url the following way:

$host = parse_url($url, PHP_URL_HOST);

edited Aug 06 '12 at 19:13

madfriend

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answered Aug 06 '12 at 19:08

Sebastian Paaske Tørholm

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score -3 · Answer 2 · answered Aug 06 '12 at 19:08

-3

$url = 'http://google.com/dhasjkdas/sadsdds/sdda/sdads.html';
$parse = parse_url($url);
print $parse['host']; // prints 'google.com'

Second method

<?php
// get host name from URL
preg_match("/^(http:\/\/)?([^\/]+)/i",
    "http://www.php.net/index.html", $matches);
$host = $matches[2];

// get last two segments of host name
preg_match("/[^\.\/]+\.[^\.\/]+$/", $host, $matches);
echo "domain name is: {$matches[0]}\n";

/* Output is php.net */


?>

answered Aug 06 '12 at 19:08

Ruzbeh Irani

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If you're going to blatantly copy code, you should at least give credit to [the original authors (Ex. #3)](http://php.net/preg_match). – nickb Aug 06 '12 at 19:13
https? and second example again is missing optional protocol – madfriend Aug 06 '12 at 19:14

How can I use PHP to get just the base name from a long url?

2 Answers2