Get Youtube Id from URL

gistfile1.txt

/**
 * Get Youtube id from the URL
 * Some examples are
 * https://youtube.com/shorts/dQw4w9WgXcQ?feature=share
 * //www.youtube-nocookie.com/embed/up_lNV-yoK4?rel=0,
 * http://www.youtube.com/user/Scobleizer#p/u/1/1p3vcRhsYGo
 * http://www.youtube.com/watch?v=cKZDdG9FTKY&feature=channel
 * http://www.youtube.com/watch?v=yZ-K7nCVnBI&playnext_from=TL&videos=osPknwzXEas&feature=sub
 * http://www.youtube.com/ytscreeningroom?v=NRHVzbJVx8I
 * http://www.youtube.com/user/SilkRoadTheatre#p/a/u/2/6dwqZw0j_jY
 * http://youtu.be/6dwqZw0j_jY
 * http://www.youtube.com/watch?v=6dwqZw0j_jY&feature=youtu.be
 * http://youtu.be/afa-5HQHiAs
 * http://www.youtube.com/user/Scobleizer#p/u/1/1p3vcRhsYGo?rel=0
 * http://www.youtube.com/watch?v=cKZDdG9FTKY&feature=channel
 * http://www.youtube.com/watch?v=yZ-K7nCVnBI&playnext_from=TL&videos=osPknwzXEas&feature=sub
 * http://www.youtube.com/ytscreeningroom?v=NRHVzbJVx8I
 * http://www.youtube.com/embed/nas1rJpm7wY?rel=0
 * http://www.youtube.com/watch?v=peFZbP64dsU
 * http://youtube.com/v/dQw4w9WgXcQ?feature=youtube_gdata_player
 * http://youtube.com/vi/dQw4w9WgXcQ?feature=youtube_gdata_player
 * http://youtube.com/?v=dQw4w9WgXcQ&feature=youtube_gdata_player
 * http://www.youtube.com/watch?v=dQw4w9WgXcQ&feature=youtube_gdata_player
 * http://youtube.com/?vi=dQw4w9WgXcQ&feature=youtube_gdata_player
 * http://youtube.com/watch?v=dQw4w9WgXcQ&feature=youtube_gdata_player
 * http://youtube.com/watch?vi=dQw4w9WgXcQ&feature=youtube_gdata_player
 * http://youtu.be/dQw4w9WgXcQ?feature=youtube_gdata_player.
 *
 * @param string $url youtube video url
 *
 * @return string
 */
function getYoutubeId($url)
{
    $str = '';
    $re = '/^.*(?:(?:youtu\.be\/|v\/|vi\/|u\/\w\/|embed\/|shorts\/)|(?:(?:watch)?\?v(?:i)?=|\&v(?:i)?=))([^#\&\?]*).*/m'; //phpcs:ignore
    preg_match_all($re, $url, $str, PREG_SET_ORDER, 0);

    return $str;
}