用parse_url函数例子:
<?php
$url = 'http://username:password@hostname/path?arg=value#anchor';print_r(parse_url($url));
?>结果:
Array
(
    [scheme] => http
    [host] => hostname
    [user] => username
    [pass] => password
    [path] => /path
    [query] => arg=value
    [fragment] => anchor
)