title: Get the Youtube Video Thumbnail from Youtube video Url using PHP
body: <p>Lets say I have a youtube video url <code>www.youtube.com/watch?v=B4CRkpBGQzU&amp;feature=youtube_gdata&amp;par1=1&amp;par2=2</code></p>
  
  <p>I want to get the video thumbnail -> i3.ytimg.com/vi/B4CRkpBGQzU/default.jpg
  I just need a simple php script that I will input the $url and get the $img
  If posible I would like to strip all other parameters and be left with just the
  www.youtube.com/watch?v=B4CRkpBGQzU as the $url </p>