Wordpress Navigation menu Dynamic With dropdown Support

nav-menu.php

//Must be included walker menu from wp-bootstrap-navwalker.php on github


register_nav_menus(array(
		'header_menu' => 'Header Menu',
		'footer_menu' => 'Footer Menu'
	));


<?php
    wp_nav_menu(array(
      'theme_location' => 'header_menu',
      'container' => 'div',
      'container_class' => 'navbar-collapse collapse align-left',
      'menu_class' => 'nav navbar-nav',
      'depth' => '3',
      'fallback_cb' => 'WP_Bootstrap_Navwalker::fallback',
      'walker' => new WP_Bootstrap_Navwalker()


    ));
?>