title: facebook connect php api, how show friends already using an app
body: <p>what code could i use to display all users who are using my app? i am getting the facebook session as such: </p>
  
  <pre><code>            require_once basepath.'/includes/facebook/src/facebook.php';
              // Create our Application instance.
              $facebook = new Facebook(array(
                'appId' =&gt; '#####',
                'secret' =&gt; '####',
                'cookie' =&gt; true,
              ));
  
              $session = $facebook-&gt;getSession();
  </code></pre>
  
  <p>how do i show connected users? thanks</p>