title: Getting the facebook session at the server side if we login using JS SDK
body: <p>Friends,</p>
  
  <p>I have set up a facebook login for my website using JS SDK. </p>
  
  <ol>
  <li><p>If the use is logged in through JS SDK, should we cross verify whether the session is valid in the server side also as client side can easily be fabricated. </p></li>
  <li><p>Since I use JS SDK, server will not have access to the facebook session.
  If I need to verify the session at the server end, can i use php-sdk adn extern the session like it is specified in <a href="https://developers.facebook.com/docs/reference/php/">https://developers.facebook.com/docs/reference/php/</a> ? In this case I need to enable CURL PHP extension to get this running and worried if performance will go down when using php sdk. </p></li>
  </ol>
  
  <p>Could you please help me in finding answers for the above queries?</p>