- print_r: documentation ( source)
- parse_url: documentation ( source)
<?php
$url = 'http://username:password@hostname/path?arg=value#anchor';
print_r(parse_url($url));
echo parse_url($url, PHP_URL_HOST);
echo parse_url($url, PHP_URL_PORT);
echo parse_url($url, PHP_URL_USER);
echo parse_url($url, PHP_URL_PASS);
echo parse_url($url, PHP_URL_QUERY);
echo parse_url($url, PHP_URL_FRAGMENT);