How to get the facebook details using id

Hi friends,
We can get the facebook details using facebook id., in some of applications have to provide auto fill functionality. then this function will be useful.

 
<?php 
function getdetails($id) 
{ 
$fbUrl = "https://graph.facebook.com/".$id; 
$str = file_get_contents($fbUrl); 
$result = json_decode($str); 
return $result->name; 
} 
 
?>