Question

This is my code :

    <?php
require_once("facebook-php-sdk/src/facebook.php");
    define('YOUR_APP_ID', 'xxxxxxxxxxxxx');
    define('YOUR_APP_SECRET', 'xxxxxxxxxxxxxxxxxxxxxxxx');
    $facebook = new Facebook(array(
     'appId' => YOUR_APP_ID,
     'secret' => YOUR_APP_SECRET,
    ));
    $userId = $facebook->getUser();
    if($userId){
         $userInfo = $facebook->api('/' + $userId);
         $fbid = $userInfo['id'];
         $params = array();
         echo '<a href='.$facebook->getLogoutUrl($params).'><div class="text-facebook"><img style="vertical-align:middle;" src="/img/fbicon.png">Logout</div></a>';                         
               }
                else{
                  $permission = array('scope' => 'email');
                  echo '<a href='.$facebook->getLoginUrl($permission).'><div class="text-facebook"><img style="vertical-align:middle;" src="/img/fbicon.png">Login with Facebook</div></a>';
                     }
?>

Login works perfectly, but when I click the Logout button it logs me out of facebook.com, but it stays logged on my website, which is exactly the opposite of what I want. I want the link to delete all facebook information from my website, but keep the user logged to facebook.

I don’t know if I explained correctly what I need, but I’ll clear things up if someone asks.

Answer 1

If you want the user to log out from your site but stay logged in to facebook then the answer is simple:

Don’t use facebook->getlogouturl()

If after a successful login, you set a variable to be true, and use that to permit actions you only grant to a logged in user, then all your logout button will need to do is set that variable to false.