Facebook PHP SDK

If you request the “offline_access” permission when using the Facebook PHP SDK (and sometimes even without it), it makes the default logout functionality not work very well.  To fix this, here’s what worked for me: Change your logout url: $logoutUrl = $facebook->getLogoutUrl(array( ‘next’ => ($fbconfig['baseurl'].’logout.php’) )); On your logout.php page, add the following code: setcookie(‘fbs_’.$facebook->getAppId(), [...]