3v4l.org

run code in 150+ php & hhvm versions
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<?php $url = "http://www.mysite.com/section/index.php"; preg_match('/((?:\w+\.)+\w+)/', $url, $matches); var_dump($matches);
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
array(2) { [0]=> string(14) "www.mysite.com" [1]=> string(14) "www.mysite.com" }