title: Get the GET variables from a URL String
body: <p>Hey, say I have a url just being passed through my php is there any easy way to get some GET variables that are being passed through it? It's not the actual url of the page or anything.</p>
  
  <p>like a just have a string containing </p>
  
  <p><a href="http://www.somesite.com/index.php?url=var&amp;file_id=var&amp;test=var" rel="noreferrer">http://www.somesite.com/index.php?url=var&amp;file_id=var&amp;test=var</a></p>
  
  <p>Whats the best way to get the values for those variables?</p>