I am using facebook php sdk in zend. i am not getting user id even i have logged in facebook in another tab. Please help me to fix this issue.
$facebook = new \Facebook(array(
'appId' => FACEBOOK_APP_ID,
'secret' => FACEBOOK_SECRET,
'cookie' => true,
));
$user = $facebook->getUser();
echo $user;
when i am using above code $user
return 0
some times.