What is the recommended method for including PHP files in HTML pages?

When including PHP files in HTML pages, the recommended method is to use the `include` or `require` functions provided by PHP. These functions allow you to insert the content of another PHP file into the current file, making it easier to manage and organize your code. By using these functions, you can separate your logic into different files and include them where needed in your HTML pages.

<?php
include 'path/to/your/file.php';
?>