<?php
/*
Get Youtube ID
@param $url string
returns the ID of a Youtube Video URL
*/
function get_youtube_id($url) {
parse_str( parse_url( $url, PHP_URL_QUERY ), $query_string );
return($query_string['v']);
}
Usage:
get_youtube_id('https://www.youtube.com/watch?v=zWvvvGprR-o');