WordPress Version: 4.5
/**
* Creates a navigation menu.
*
* Note that `$menu_name` is expected to be pre-slashed.
*
* @since 3.0.0
*
* @param string $menu_name Menu name.
* @return int|WP_Error Menu ID on success, WP_Error object on failure.
*/
function wp_create_nav_menu($menu_name)
{
// expected_slashed ($menu_name)
return wp_update_nav_menu_object(0, array('menu-name' => $menu_name));
}