3v4l.org

run code in 300+ PHP versions simultaneously
<?php $videoURLs = array( 'http://www.youtube.com/embed/VIDEO_ID', 'http://youtu.be/VIDEO_ID', 'http://www.youtube.com/v/VIDEO_ID', 'http://www.youtube.com/watch?v=VIDEO_ID', ); foreach ($videoURLs as $urlNow) { $url = parse_url($urlNow); $url['path'] = str_replace(array('/v/', '/embed/', '/'), '', $url['path']); parse_str($url['query'], $query); $videoID = (is_array($query) && isset($query['v'])) ? $query['v'] : $url['path']; var_dump($urlNow, $videoID); } ?>

preferences:
30.84 ms | 402 KiB | 5 Q