What are the best practices for implementing a Pulldown with include in PHP?

When implementing a Pulldown with include in PHP, it is important to follow best practices to ensure clean and efficient code. One way to do this is by separating the HTML markup from the PHP logic using includes. This helps to improve code readability, maintainability, and reusability.

// index.php

<select name="dropdown">
    <?php include 'dropdown_options.php'; ?>
</select>

// dropdown_options.php

<option value="1">Option 1</option>
<option value="2">Option 2</option>
<option value="3">Option 3</option>