Register new #menu #wordpress

new_menu.php

<?php
  
// menu
register_nav_menus( array(
    'main_menu' => __( 'Primary Menu', 'text-domain' );
  	// other stuff
);
                   
// primary menu
function registerPrimaryMenu() {
    register_nav_menu( 'primary', __( 'Primary Menu', 'text-domain' ) );
}
add_action( 'after_setup_theme', 'registerPrimaryMenu' );
                   
// calling menu
wp_nav_menu(
  array(
    'container_class'      => 'customContainerMenu',	// custom menu container ID
    'container_id'         => 'customContainerID',		// custom menu container class
    'menu_class'           => 'customMenuClass', 		// custom menu class
    'menu_id'              => 'customMenuID',			// custom menu ID
    'fallback_cb'          => 'wp_page_menu', 			// which menu is called by dfault
    'depth'                => 1, 						// depth of nested menus, 0 is all, 1 is 1st levet
    'theme_location'       => 'main_menu', 				// registered menu
    // more: https://developer.wordpress.org/reference/functions/wp_nav_menu/
  )
);