if (isConnectedUser()) { echo "Welcome back, user!"; } else { echo "Please login to continue."; }
session_start(); if (isConnectedUser()) { // User is logged in, allow access to restricted page echo "Welcome to the restricted area, ".$_SESSION['username']."!"; } else { // Redirect to login page header("Location: login.php"); }In this example, we use the isConnectedUser function to check if the user is logged in by checking if their session is active. If the user is logged in, we allow them access to a restricted page and display a welcome message that includes their username. If the user is not logged in, we redirect them to a login page. Package library: This code uses PHP's built-in session library for authentication purposes.