Extract Youtube ID From Any URL

youtube.php

<?php
$your_url='http://www.youtube.com/watch?var1=blabla#v=GvJehZx3eQ1$var2=bla';

function get_youtube_id_from_url($url){
    if (stristr($url,'youtu.be/'))
        { preg_match('/(https:|http:|)(\/\/www\.|\/\/|)(.*?)\/(.{11})/i', $url, $final_ID); return $final_ID[4]; }
    else 
        { preg_match('/(https:|http:|):(\/\/www\.|\/\/|)(.*?)\/(embed\/|watch\?v=|(.*?)&v=|v\/|e\/|.+\/|watch.*v=|)([a-z_A-Z0-9]{11})/i', $url, $IDD); return $IDD[6]; }
}

echo get_youtube_id_from_url($your_url);