What are the implications of using PHP includes for SEO and website performance?

Using PHP includes can have both positive and negative implications for SEO and website performance. On one hand, using includes can help improve website performance by reducing code duplication and making it easier to manage and update code. However, using includes excessively can lead to slower load times if not optimized properly. From an SEO perspective, using includes can help with site structure and organization, but it's important to ensure that the included content is relevant and properly optimized for search engines.

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