How can PHP be utilized to create an internal area with restricted access on a website?

To create an internal area with restricted access on a website using PHP, you can use sessions to authenticate users. When a user logs in, set a session variable to track their authentication status. Then, on restricted pages, check for this session variable before allowing access. If the variable is not set, redirect the user to a login page. 

<?php
session_start();

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

// Restricted content goes here
?>

Keywords

PHP authentication authorization session management password hashing

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