Extract the YouTube Video ID from a URL in PHP

youtube_id_regex.php

<?php
// Here is a sample of the URLs this regex matches: (there can be more content after the given URL that will be ignored)

// http://youtu.be/dQw4w9WgXcQ
// http://www.youtube.com/embed/dQw4w9WgXcQ
// http://www.youtube.com/watch?v=dQw4w9WgXcQ
// http://www.youtube.com/?v=dQw4w9WgXcQ
// http://www.youtube.com/v/dQw4w9WgXcQ
// http://www.youtube.com/e/dQw4w9WgXcQ
// http://www.youtube.com/user/username#p/u/11/dQw4w9WgXcQ
// http://www.youtube.com/sandalsResorts#p/c/54B8C800269D7C1B/0/dQw4w9WgXcQ
// http://www.youtube.com/watch?feature=player_embedded&v=dQw4w9WgXcQ
// http://www.youtube.com/?feature=player_embedded&v=dQw4w9WgXcQ

// It also works on the youtube-nocookie.com URL with the same above options.
// It will also pull the ID from the URL in an embed code (both iframe and object tags)

preg_match('%(?:youtube(?:-nocookie)?\.com/(?:[^/]+/.+/|(?:v|e(?:mbed)?)/|.*[?&]v=)|youtu\.be/)([^"&?/ ]{11})%i', $url, $match);
$youtube_id = $match[1];
?>

I cannot get the code to work.
Here is draft
$url='https://www.youtube.com/watch?v=1234567';

preg_match('%(?:youtube(?:-nocookie)?.com/(?:[^/]+/.+/|(?:v|e(?:mbed)?)/|.*[?&]v=)|youtu.be/)([^"&?/ ]{11})%i', $url, $match);
echo $match[1];

It returns a blank page even if I replace $url with the URL
I would be grateful if you could point me in the right direction

Resolved - many apologies
Obviously needs
$video=print_r($match[1],TRUE);
echo $video;

@ijyoung Not a problem! Apologies for not being able to answer right away.

Thanks for reply.. Much appreciated.

http://www.youtube.com/embed/123456789890 is another one (embed)

Thanx for posting

embed/live_stream?channel=UCmyKnNRH0wH-r8I-ceP-dsg ???????

I found a url that this chokes on:
https://www.youtube.com/watch?src=Linkfire&lId=1e287f9d-28fd-4d26-8878-e17eeeb50bc3&cId=243a20ab-c558-413d-a755-b68ba13bc941&v=fVuw7VCefME&feature=youtu.be&ab_channel=Ti%C3%ABsto

Not working: https://www.youtube.com/watch?v=-np5iMKQaDw

Fails on this: https://www.youtube.com/embed/1wlzsyjVBw?enablejsapi=1&wmode=opaque&autoplay=1

Not working on https://youtube.com/live/…
Edit:
just added |live/ works for me now:

preg_match('%(?:youtube(?:-nocookie)?\.com/(?:[^/]+/.+/|(?:v|e(?:mbed)?)/|.*[?&]v=|live/)|youtu\.be/)([^"&?/ ]{11})%i', $url, $match);
    $youtube_id = $match[1];

Not working on https://youtube.com/live/… Edit: just added |live/ works for me now:

preg_match('%(?:youtube(?:-nocookie)?\.com/(?:[^/]+/.+/|(?:v|e(?:mbed)?)/|.*[?&]v=|live/)|youtu\.be/)([^"&?/ ]{11})%i', $url, $match);
    $youtube_id = $match[1];

Works perfect, thanks!