title: file_get_html gets an empty page
body: <p>Im trying to get the content of a certain webpage via file_get_html. </p>
  
  <p>The thing is that I managed to do it before but now it gives me an empty result without any error msg.</p>
  
  <pre><code>file_get_contents('http://www.google.com') or die('this is not a valid url'); 
  </code></pre>
  
  <p>the url is valid. i chekced it by pasting it to my browser.</p>
  
  <p>I tried playing with the user_agent :</p>
  
  <pre><code>ini_set('user_agent', 'My-Application/2.5');
  </code></pre>
  
  <p>or even </p>
  
  <pre><code>ini_set('user_agent', 'Mozilla/5.0 (Windows NT 5.1) AppleWebKit/535.24 (KHTML like Gecko) Chrome/19.0.1055.1 Safari/535.24');
  </code></pre>
  
  <p>but nothing..
  any suggestions?</p>