wordpress主题开发之《导航栏a标签样式自定义》

function sonliss_menu_link_atts($atts, $item, $args)
{
    if ($args->theme_location == 'main_menu') { //这里的 main 是菜单id
        $atts['class'] = 'nav-link hr-nav__link dropdown-toggle arrow-none';
        $atts['title'] = $item->title;
    }
    return $atts;
}
add_filter('nav_menu_link_attributes', 'sonliss_menu_link_atts', 100, 3);