RegEx pattern to get the YouTube video ID from any YouTube URL

Question

Let\'s take these URLs as an example:

1. http://www.youtube.com/watch?v=8GqqjVXhfMU&feature=youtube_gdata_player
2. http://www.youtube.com/watch?v=8Gqqj

Answer 1

Here is my function for retrieving Youtube ID !

function getYouTubeId($url) {
    if (!(strpos($url, 'v=') !== false)) return false;
    $parse = explode('v=', $url);
    $code = $parse[1];
    if (strlen($code) < 11) return false;
    $code = substr($code, 0, 11);
    return $code;
}

Answer 2

Here is one solution

/**
 * credits goes to: http://stackoverflow.com/questions/11438544/php-regex-for-youtube-video-id
 * update: mobile link detection
 */
public function parseYouTubeUrl($url)
{
     $pattern = '#^(?:https?://)?(?:www\.)?(?:m\.)?(?:youtu\.be/|youtube\.com(?:/embed/|/v/|/watch\?v=|/watch\?.+&v=))([\w-]{11})(?:.+)?$#x';
     preg_match($pattern, $url, $matches);
     return (isset($matches[1])) ? $matches[1] : false;
}

It can deal with mobile links too.

Answer 3

Instead of regex. I hightly recommend parse_url() and parse_str():

$url = "http://www.youtube.com/watch?v=8GqqjVXhfMU&feature=youtube_gdata_player";
parse_str(parse_url( $url, PHP_URL_QUERY ), $vars );
echo $vars['v'];    

Done