What are some best practices for using PHP includes to simplify website management?

When managing a website, using PHP includes can simplify the process by allowing you to separate reusable code into separate files. This makes it easier to update common elements like headers, footers, or navigation menus across multiple pages without having to edit each individual file.

<?php
include 'header.php';
include 'navigation.php';
// page content
include 'footer.php';
?>