footer.php

<?php
/**
 * The template for displaying the footer
 *
 * Contains the closing of the #content div and all content after.
 *
 * @link https://developer.wordpress.org/themes/basics/template-files/#template-partials
 *
 * @package SP_MDL
 */

?>

    <?php do_action('sp_mdl_before_closing_content'); ?>

    </div><!-- #content -->

    <footer class="mdl-mega-footer">

        <?php do_action('sp_mdl_after_opening_footer'); ?>

        <div class="mdl-mega-footer__middle-section">
            <?php dynamic_sidebar('footer-1'); ?>
            <?php dynamic_sidebar('footer-2'); ?>
            <?php dynamic_sidebar('footer-3'); ?>
            <?php dynamic_sidebar('footer-4'); ?>
        </div>

        <?php get_template_part('template-parts/nav', 'footer'); ?>

        <?php do_action('sp_mdl_before_closing_footer'); ?>

    </footer>

    </main> <!-- .mdl-layout__content -->

</div><!-- #page -->

<?php wp_footer(); ?>

<?php do_action('sp_mdl_before_closing_body'); ?>

</body>
</html>