What are the advantages and disadvantages of using PHP includes for header and footer elements in web development projects?

When developing a website, using PHP includes for header and footer elements can help streamline the development process by allowing for easy updates and consistency across multiple pages. However, one disadvantage is that it can make the code more complex and harder to debug if not implemented properly.

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

<!-- Main content of the page goes here -->

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