// // If we have a $user id here, it means we know the user is logged into // Facebook, but we don't know if the access token is valid. An access // token is invalid if the user logged out of Facebook. if ($user) { try { // Proceed knowing you have a logged in user who's authenticated. $user_profile = $facebook->api('/me'); } catch (Facebook\FacebookApiException $e) { error_log($e); $user = null; } } // Login or logout url will be needed depending on current user state. if ($user) { $logoutUrl = $facebook->getLogoutUrl(); } else { $loginUrl = $facebook->getLoginUrl(); } // This call will always work since we are fetching public data. $naitik = $facebook->api('/naitik'); ?> <!doctype html> <html xmlns:fb="http://www.facebook.com/2008/fbml"> <head> <title>php-sdk</title> <style> body { font-family: 'Lucida Grande', Verdana, Arial, sans-serif; } h1 a {