title: Create thumbnails from URLs using PHP
body: <p>I want to generate thumbnails of websites. I found a few sites that handle it with an API, such as <a href="http://www.websnapr.com/" rel="nofollow">http://www.websnapr.com/</a></p>
  
  <p>How can this be done with PHP so I can handle all of the requests on my server?</p>