Let's extend our template from above and include content from header.php and footer.php
We will include header right after Template name comment
There are two common ways to do this. Both are right and work same, it's just about your style and how code looks
<?php /* Template Name: Example */ get_header(); ?>
<?php /* Template Name: Example */ ?> <?php get_header(); ?>
Including footer works the same way, there is only one thing we need to care about, and that is that we include footer after we included header. So the final template should look something like this.
<?php /* Template Name: Example */ get_header(); ?> <?php get_footer(); ?>