3v4l.org

run code in 300+ PHP versions simultaneously
<?php function _getYoutubeVideoId($url) { if (preg_match('%(?:youtube(?:-nocookie)?\.com/(?:[^/]+/.+/|(?:v|e(?:mbed)?)/|.*[?&]v=)|youtu\.be/)([^"&?/ ]{11})%i', $url, $match)) { return $match[1]; } } var_dump(_getYoutubeVideoId("http://youtu.be/WQq0RAbj4i8"));

preferences:
29.41 ms | 402 KiB | 5 Q