How can the use of different file extensions (e.g., .html instead of .php) impact website maintenance and future technology changes?

Using different file extensions can impact website maintenance and future technology changes because certain extensions may be tied to specific technologies or functionalities. For example, using .php files may require a server that supports PHP, while using .html files may limit the dynamic capabilities of the website. To address this issue, it is recommended to use file extensions that are versatile and commonly supported across different technologies, such as .php for dynamic content and .html for static content.

// Example of using .php file extension for dynamic content
<?php
// PHP code here
?>