Get youtube video thumbnail / image in using php

if you want to post thumbnail  image of  youtube video in your website, this tip show how to get youtube video thumbnail / image in by php.

First you need to get youtube video id from you tube

URL https://www.youtube.com/watch?v=wXGQUfxguxI

$youtube_url = "http://www.youtube.com/watch?v=wXGQUfxguxI";
parse_str( parse_url( $youtube_url, PHP_URL_QUERY ) );
echo $v; // this will output wXGQUfxguxI