What are the differences between using HTML links and PHP include statements for navigation within a website, and when is it more appropriate to use one over the other in PHP development?

When creating navigation within a website, using HTML links is suitable for static content that does not change often. On the other hand, PHP include statements are more appropriate for dynamic content that needs to be included on multiple pages. To implement PHP include statements for navigation, create a separate PHP file for the navigation menu and include it on each page where the navigation is needed.

<?php include 'navigation.php'; ?>