WordPress Menu class edit

menu-class.php

<?php 

$menu_class_add = wp_nav_menu(array(
	'theme_location'		=> 'main-menu',
	'echo'					=> false,
));

$menu_class = str_replace('menu-item-has-children', 'menu-item-has-children amar-has-children', $menu_class_add);

echo $menu_class;


function menu_item_class($classes, $item) {
	$classes[] = 'list-item-class';
	return $classes;
}

add_filter('nav_menu_css_class', 'menu_item_class', 10, 2);

 //add menu class 
  $('#menu-main-menu').children('.menu-item-has-children').addClass('mega_menu_dropdown');