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Facebook Connect Token Problem


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Hello everyone, i am working on a website that uses facebook api to login with facebook.

 

However i am having a problem with the Javascript and PHP sdk.

 

The problem is that i keep getting an unexpected error which basically expires the facebook Auth Token and then it logs the user out of the website then logs them back in.

 

 

The code that i am using is below....

 

<?php

require 'facebook.php';

$facebook = new Facebook(array(
 'appId'  => 'MY_APP_ID_HERE',
 'secret' => 'MY_APP_SECRET',
 'cookie' => true
));

// See if there is a user from a cookie
$user = $facebook->getUser();

if ($user) {
 try {
   // Proceed knowing you have a logged in user who's authenticated.
   $user_profile = $facebook->api('/me');
 } catch (FacebookApiException $e) {
   echo '<pre>'.htmlspecialchars(print_r($e, true)).'</pre>';
   $user = null;
 }
}

?>
<!DOCTYPE html>
<html xmlns:fb="http://www.facebook.com/2008/fbml">
 <body>
   <?php if ($user) { ?>
     Your user profile is
     <pre>
       <?php print htmlspecialchars(print_r($user_profile, true)) ?>
     </pre>
   <?php } else { ?>

     <fb:login-button></fb:login-button>

   <?php } ?>
   <div id="fb-root"></div>
   <script>
     window.fbAsyncInit = function() {
       FB.init({
         appId: '<?php echo $facebook->getAppID() ?>',
         cookie: true,
         xfbml: true,
         oauth: true
       });
       FB.Event.subscribe('auth.login', function(response) {
         window.location.reload();
       });
       FB.Event.subscribe('auth.logout', function(response) {
         window.location.reload();
       });
     };
     (function() {
       var e = document.createElement('script'); e.async = true;
       e.src = document.location.protocol +
         '//connect.facebook.net/en_US/all.js';
       document.getElementById('fb-root').appendChild(e);
     }());
   </script>
 </body>
</html>

 

 

 

The error that i get when the user logs out is this:

 

[error] => Array
                                       (
                                           [message] => An active access token must be used to query information about the current user.
                                           [type] => OAuthException
                                           [code] => 2500
                                       )

 

 

 

Can someone please tell me if i am doing something wrong?

 

How can i get the session to NOT expire so fast?

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