What are some common methods for creating a members-only section on a website using PHP?

To create a members-only section on a website using PHP, you can use session variables to track whether a user is logged in or not. When a user logs in, set a session variable to indicate their authentication status. Then, on each restricted page, check if the session variable is set to allow access to members only.

<?php
session_start();

// Check if user is logged in
if(!isset($_SESSION['logged_in']) || $_SESSION['logged_in'] !== true) {
    header("Location: login.php");
    exit();
}

// Members-only content here
?>