PHP:从字符串中的 URL 中删除“WWW"

Currently I am using parse_url, however the host item of the array also includes the 'WWW' part which I do not want. How would I go about removing this?

$parse = parse_url($url);
print_r($parse);
$url = $parse['host'] . $parse['path'];
echo $url;

推荐答案

$url = preg_replace('#^www.(.+.)#i', '$1', $parse['host']) . $parse['path'];

这不会删除 www.com 中的 www，但 www.www.com 会导致 www.com.