What is the recommended method to include a large HTML block in a PHP file?

When including a large HTML block in a PHP file, it is recommended to use the `include` function to separate the HTML content from the PHP logic. This helps to keep the code clean and maintainable by separating the presentation layer from the business logic.

<?php
// PHP logic here

// Include the HTML block
include 'path/to/your/html/block.php';

// More PHP logic here
?>