if (Auth::check()) { // The user is logged in. } else { // The user is not logged in. }
session_start(); if (isset($_SESSION['user_id'])) { // The user is logged in. } else { // The user is not logged in. }In this example, the session_start function is used to start a session for the user. If the session variable 'user_id' is set, the user is logged in and certain actions or views can be allowed. If the session variable is not set, the user is not logged in and can be redirected to a login page or shown a restricted message. In conclusion, the isLogin function can be used in various web applications to determine whether a user is logged in or not, depending on the package library used or the code implemented.