我试图用json符号导出wordpress站点菜单的精华。
我想提取一些细节，如id、类型、名称、子项，并想构建一个Json对象，如下所示。
项目-
{
id: \'wp entity id\',
name: \'name of the category|taxonomy|post|page\',
type: \'post|category|page\',
children: [array of Items]
}
其中，
“子项”：此处表示子项“类型”：表示项的类型，即帖子链接、页面链接、类别链接和自定义链接编辑：我试图实现的示例，假设我有如下菜单，
-0-------1--------2-------3+- level/depth
|
|\\___ Lobby
|
|\\___ Projects
| |\\___ Project A
| | |\\___ Review
| | |\\___ Comments
| | \\____ Download
| \\____ Project B
| |\\___ Review
| |\\___ Comments
| \\____ Download
|\\___ Blog
|
\\____ About
|\\___ Legal
\\____ Contact
我想将此菜单表示为对象。
{
{
id: \'1\',
name: \'lobby\',
type: \'page\',
children: []
},
{
id: \'12\',
name: \'Projects\',
type: \'category\',
children: [{
id: \'12\',
name: \'Project A\',
type: \'category\',
children: [ ... ]
}]
},
...
...
{
id: \'15\',
name: \'blog\',
type: \'page\',
children: []
},
...
}
最合适的回答,由SO网友:Nagendra Rao 整理而成
找到一个解决方案，修改它以满足我的需要，
菜单项类：
class Menu_Item{
private $object;
private $object_id;
private $link_name;
private $link_value;
public function __construct($object, $object_id, $linkname, $linkvalue){
$this->object_id = $object_id;
$this->object = $object;
$this->link_name = $linkname;
$this->link_value = $linkvalue;
}
public function get_link_name(){
return $this->link_name;
}
public function get_object_id(){
return $this->object_id;
}
public function get_link_value(){
return $this->link_value;
}
public function get_object(){
return $this->object;
}
}
JSON生成器：
$menu_name = \'main-menu\'; //menu name slug
$menu_json_data_string = \'{\';
if ($menu_name) {
$menu = wp_get_nav_menu_object( $menu_name );
$menu_items = wp_get_nav_menu_items($menu->term_id);
//initialize two menu item arrays
$main_menu_item_array = array();
$sub_menu_item_array = array();//defined as 2d array
//define two menu item arrays first
for($i=0;$i<count($menu_items);$i+=1){
$current_menu_item_obj = $menu_items[$i];
if($current_menu_item_obj->menu_item_parent == "0"){ //main menu item found
//define a new menu_item object
$menu_item_obj = new Menu_Item($current_menu_item_obj->object, $current_menu_item_obj->object_id, $current_menu_item_obj->title, $current_menu_item_obj->url);
$main_menu_item_array[$current_menu_item_obj->ID] = $menu_item_obj;
}else{ //sub menu found
$menu_item_obj = new Menu_Item($current_menu_item_obj->object, $current_menu_item_obj->object_id, $current_menu_item_obj->title, $current_menu_item_obj->url);
$sub_menu_item_array[$current_menu_item_obj->menu_item_parent][] = $menu_item_obj;
}
}
$menu_item_json_array = array();
foreach($main_menu_item_array as $each_main_menu_key=>$each_main_menu_item){
$each_menu_item_link_name = $each_main_menu_item->get_link_name();
$each_menu_item_link_value = $each_main_menu_item->get_link_value();
$each_menu_item_object_id = $each_main_menu_item->get_object_id();
$each_menu_item_slug = strtolower(str_replace(" ", "_", $each_menu_item_link_name));
$obj = $each_main_menu_item->get_object();
$type = ($obj==\'meta_category\')?\'meta\':\'main\';
$each_menu_item_string = \'"\'.$each_menu_item_slug.\'":{"id": "\'.$each_menu_item_object_id.\'", "type": "\'.$type.\'", "url":"\'.$each_menu_item_link_value.\'","name":"\'.$each_menu_item_link_name.\'"\';
if(array_key_exists($each_main_menu_key, $sub_menu_item_array)){ //has sub menu item
//count submenu items
$count_sub_menu_item = count($sub_menu_item_array[$each_main_menu_key]);
//put each sub menu item into an array
$submenu_item_list_main_string = \',"children": [\';
$submenu_item_list_array = array();
foreach($sub_menu_item_array[$each_main_menu_key] as $each_sub_menu_item){
$obj = $each_sub_menu_item->get_object();
$type = ($obj==\'meta_category\')?\'meta\':\'main\';
$each_sub_menu_item_string = \'{"id": "\'.$each_sub_menu_item->get_object_id().\'", "type": "\'.$type.\'", "url":"\'.$each_sub_menu_item->get_link_value().\'", "name":"\'.$each_sub_menu_item->get_link_name().\'"}\';
$submenu_item_list_array[] = $each_sub_menu_item_string;
}
$submenu_item_list_string = implode(",", $submenu_item_list_array);
$submenu_item_list_main_string .= $submenu_item_list_string;
$submenu_item_list_main_string .= \']\';
$each_menu_item_string .= $submenu_item_list_main_string;
}
$each_menu_item_string .= \'}\';
$menu_item_json_array[] = $each_menu_item_string;
}
$menu_item_json_string = implode(",", $menu_item_json_array);
}
$menu_json_data_string .= $menu_item_json_string;
$menu_json_data_string .= \'}\';
echo $menu_json_data_string;
参考号：
http://simple2kx.com/wordpress-create-json-data-page-to-load-menu-items/
