Purpose
Checks if a user is logged in
Location
users/classes/User.php
Parameters
This function does not take any arguments
Example
if(isset($user) && $user->isLoggedIn()){//do something }
Further Documentation:
This method is generally used with isset(
$user) to avoid throwing errors. The typical usage is
if(isset($user) && $user->isLoggedIn()){
//do something
}