create custom wordpress menu code example

Example 1: how make custom menu in wordpress

<?php
wp_nav_menu( array( 
    'theme_location' => 'my-custom-menu', 
    'container_class' => 'custom-menu-class' ) ); 
?>

Example 2: wp main menu

wp_nav_menu( array( 'theme_location' => 'header', 'menu' => 'Main Menu') );