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我正在開發WP主題,我想要的是當前頂級項目的sidebare上的導航。WordPress的獲取頂級菜單項目標題
- 菜單項
- 子菜單項
- Subsubmenu項目
- Subsubmenu項目
- Subsubmenu項目
- 子菜單項
- Subsubmenu項目
- Subsubmenu項目
- Subsubmenu項目
- 子菜單項
- Subsubmenu項目
- Subsubmenu項目
- Subsubmenu項目
- 子菜單項
請在側邊欄上看到下面的代碼,除了「Menu Item(top parent)」。你知道如何實現這個?
// add hook
add_filter('wp_nav_menu_objects', 'my_wp_nav_menu_objects_sub_menu', 10, 2);
// filter_hook function to react on sub_menu flag
function my_wp_nav_menu_objects_sub_menu($sorted_menu_items, $args) {
if (isset($args->sub_menu)) {
$root_id = 0;
// find the current menu item
foreach ($sorted_menu_items as $menu_item) {
if ($menu_item->current) {
// set the root id based on whether the current menu item has a parent or not
$root_id = ($menu_item->menu_item_parent) ? $menu_item->menu_item_parent : $menu_item->ID;
break;
}
}
// find the top level parent
if (! isset($args->direct_parent)) {
$prev_root_id = $root_id;
while ($prev_root_id != 0) {
foreach ($sorted_menu_items as $menu_item) {
if ($menu_item->ID == $prev_root_id) {
$prev_root_id = $menu_item->menu_item_parent;
// don't set the root_id to 0 if we've reached the top of the menu
if ($prev_root_id != 0) $root_id = $menu_item->menu_item_parent;
break;
}
}
}
}
$menu_item_parents = array();
foreach ($sorted_menu_items as $key => $item) {
// init menu_item_parents
if ($item->ID == $root_id) $menu_item_parents[] = $item->ID;
if (in_array($item->menu_item_parent, $menu_item_parents)) {
// part of sub-tree: keep!
$menu_item_parents[] = $item->ID;
} else if (! (isset($args->show_parent) && in_array($item->ID, $menu_item_parents))) {
// not part of sub-tree: away with it!
unset($sorted_menu_items[$key]);
}
}
return $sorted_menu_items;
} else {
return $sorted_menu_items;
}
}
With echo $ root_id; 我能夠獲得根菜單項ID,但我想顯示標題。
這是我在側邊欄
<section class="widget widget_navbar">
<?php
if (has_nav_menu('primary_navigation')) :
wp_nav_menu([
'theme_location' => 'primary_navigation',
'sub_menu' => true,
]);
endif;
?>
</section>