<?php
session_start();
// Simulating a logged-in user for the test
$_SESSION['user_id'] = 1; 
require_once 'db/config.php';
include '_sidebar.php';
?>
<div style='padding: 20px;'>
<h1>Test Page</h1>
<p>If you see the sidebar to the left and this message, the test is successful.</p>
</div>