What are the limitations of using .htaccess files to restrict access to files based on user login status in PHP?

Using .htaccess files to restrict access based on user login status in PHP has limitations because it only controls access at the server level, not at the application level. To address this limitation, you can implement a solution within your PHP code that checks the user's login status before serving the requested file.

<?php
session_start();

if (!isset($_SESSION['logged_in']) || $_SESSION['logged_in'] !== true) {
    header('HTTP/1.0 403 Forbidden');
    echo 'You are not authorized to access this file.';
    exit;
}

// Serve the requested file here