XML : Extract from XML in PHP

  <toplevel>   <CompleteSuggestion>    <suggestion data="shook ones part 2"/>   </CompleteSuggestion>   <CompleteSuggestion>    <suggestion data="shook me all night long"/>   </CompleteSuggestion>   <CompleteSuggestion>    <suggestion data="shook ones instrumental"/>   </CompleteSuggestion>   <CompleteSuggestion>    <suggestion data="shook me all night long lyrics"/>   </CompleteSuggestion>  </toplevel>    

I want to extract "shook ones part 2" from this XML output. I have gone through every solution, but I'm unable to do this. I tried this:

  <?php  $url = 'http://suggestqueries.google.com/complete/search?output=toolbar&hl=en&q=shook&ds=yt';  $exact = simplexml_load_file('$url');  echo $exact->CompleteSuggestion[0]->suggestion;  ?>