导航li添加class

function atg_menu_classes($classes, $item, $args) {
  if($args->theme_location == 'header-menu-1') {
    $classes[] = 'aaaaaaaaaaaaa';
  }
  return $classes;
}
add_filter('nav_menu_css_class', 'atg_menu_classes', 1, 3);

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