wp_get_nav_menu_items()

💡 云策文档标注

概述

wp_get_nav_menu_items() 函数用于检索指定导航菜单的所有菜单项，返回一个包含菜单项对象的数组。它基于 get_posts() 查询菜单项文章，并支持多种参数来控制输出顺序和内容。

关键要点

函数接受菜单 ID、slug、名称或 WP_Term 对象作为第一个参数，第二个参数为可选的数组参数，用于传递给 get_posts()。
默认参数包括 order、orderby、post_type、post_status 等，其中 output_key 参数专门用于影响最终菜单项的输出顺序。
函数内部使用 wp_setup_nav_menu_item() 处理菜单项，并在前端通过 _is_valid_nav_menu_item 过滤无效项。
支持 wp_get_nav_menu_items 过滤器钩子，允许开发者自定义返回的菜单项数组。
返回数组或 false，若菜单不存在或 taxonomy 'nav_menu' 不存在则返回 false。

代码示例

// 基本用法：获取菜单项
$menu_items = wp_get_nav_menu_items( 'primary-menu' );

// 使用参数控制输出
$args = array(
    'order'      => 'DESC',
    'orderby'    => 'title',
    'output'     => ARRAY_A,
    'output_key' => 'menu_order'
);
$menu_items = wp_get_nav_menu_items( $menu_id, $args );

注意事项

大多数 $args 参数（除 output_key 外）是传递给 get_posts() 的，可能仅间接影响最终菜单项的排序和内容。
在 WordPress 6.0 及以上版本，确保 pre_get_posts 操作未意外修改查询（如设置 post_type），否则可能导致返回空数组。
函数在非管理界面会自动过滤无效菜单项，但在管理界面不会执行此过滤。

📄 原文内容

Retrieves all menu items of a navigation menu.

Description

Note: Most arguments passed to the $args parameter – save for ‘output_key’ – are specifically for retrieving nav_menu_item posts from get_posts() and may only indirectly affect the ultimate ordering and content of the resulting nav menu items that get returned from this function.

Parameters

$menuint|string|WP_Termrequired

Menu ID, slug, name, or object.

$argsarrayoptional

Arguments to pass to get_posts() .

order string
How to order nav menu items as queried with get_posts() .
Will be ignored if 'output' is ARRAY_A. Default 'ASC'.
orderby string
Field to order menu items by as retrieved from get_posts() .
Supply an orderby field via 'output_key' to affect the output order of nav menu items. Default 'menu_order'.
post_type string
Menu items post type. Default 'nav_menu_item'.
post_status string
Menu items post status. Default 'publish'.
output string
How to order outputted menu items. Default ARRAY_A.
output_key string
Key to use for ordering the actual menu items that get returned. Note that that is not a get_posts() argument and will only affect output of menu items processed in this function. Default 'menu_order'.
nopaging bool
Whether to retrieve all menu items (true) or paginate (false). Default true.
update_menu_item_cache bool
Whether to update the menu item cache. Default true.

More Arguments from get_posts( … $args )

Arguments to retrieve posts. See WP_Query::parse_query() for all available arguments.

numberposts int
Total number of posts to retrieve. Is an alias of $posts_per_page in WP_Query. Accepts -1 for all. Default 5.
category int|string
Category ID or comma-separated list of IDs (this or any children).
Is an alias of $cat in WP_Query. Default 0.
include int[]
An array of post IDs to retrieve, sticky posts will be included.
Is an alias of $post__in in WP_Query.
exclude int[]
An array of post IDs not to retrieve.
suppress_filters bool
Whether to suppress filters. Default true.

Default:array()

Return

array|false Array of menu items, otherwise false.

Source

function wp_get_nav_menu_items( $menu, $args = array() ) {
	$menu = wp_get_nav_menu_object( $menu );

	if ( ! $menu ) {
		return false;
	}

	if ( ! taxonomy_exists( 'nav_menu' ) ) {
		return false;
	}

	$defaults = array(
		'order'                  => 'ASC',
		'orderby'                => 'menu_order',
		'post_type'              => 'nav_menu_item',
		'post_status'            => 'publish',
		'output'                 => ARRAY_A,
		'output_key'             => 'menu_order',
		'nopaging'               => true,
		'update_menu_item_cache' => true,
		'tax_query'              => array(
			array(
				'taxonomy' => 'nav_menu',
				'field'    => 'term_taxonomy_id',
				'terms'    => $menu->term_taxonomy_id,
			),
		),
	);
	$args     = wp_parse_args( $args, $defaults );
	if ( $menu->count > 0 ) {
		$items = get_posts( $args );
	} else {
		$items = array();
	}

	$items = array_map( 'wp_setup_nav_menu_item', $items );

	if ( ! is_admin() ) { // Remove invalid items only on front end.
		$items = array_filter( $items, '_is_valid_nav_menu_item' );
	}

	if ( ARRAY_A === $args['output'] ) {
		$items = wp_list_sort(
			$items,
			array(
				$args['output_key'] => 'ASC',
			)
		);

		$i = 1;

		foreach ( $items as $k => $item ) {
			$items[ $k ]->{$args['output_key']} = $i++;
		}
	}

	/**
	 * Filters the navigation menu items being returned.
	 *
	 * @since 3.0.0
	 *
	 * @param array  $items An array of menu item post objects.
	 * @param object $menu  The menu object.
	 * @param array  $args  An array of arguments used to retrieve menu item objects.
	 */
	return apply_filters( 'wp_get_nav_menu_items', $items, $menu, $args );
}

View all references View on Trac View on GitHub

Hooks

apply_filters( ‘wp_get_nav_menu_items’, array $items, object $menu, array $args ): Filters the navigation menu items being returned.

Uses	Description
wp_list_sort()`wp-includes/functions.php`	Sorts an array of objects or arrays based on one or more orderby arguments.
taxonomy_exists()`wp-includes/taxonomy.php`	Determines whether the taxonomy name exists.
get_posts()`wp-includes/post.php`	Retrieves an array of the latest posts, or posts matching the given criteria.
wp_get_nav_menu_object()`wp-includes/nav-menu.php`	Returns a navigation menu object.
is_admin()`wp-includes/load.php`	Determines whether the current request is for an administrative interface page.
wp_parse_args()`wp-includes/functions.php`	Merges user defined arguments into defaults array.
apply_filters()`wp-includes/plugin.php`	Calls the callback functions that have been added to a filter hook.

Show 3 more Show less

Used by	Description
WP_Classic_To_Block_Menu_Converter::convert()`wp-includes/class-wp-classic-to-block-menu-converter.php`	Converts a Classic Menu to blocks.
WP_Customize_Nav_Menus::customize_register()`wp-includes/class-wp-customize-nav-menus.php`	Adds the customizer settings and controls.
wp_nav_menu_update_menu_items()`wp-admin/includes/nav-menu.php`	Saves nav menu items.
wp_get_nav_menu_to_edit()`wp-admin/includes/nav-menu.php`	Returns the menu formatted to edit.
wp_nav_menu()`wp-includes/nav-menu-template.php`	Displays a navigation menu.
_wp_auto_add_pages_to_menu()`wp-includes/nav-menu.php`	Automatically add newly published page objects to menus with that as an option.
wp_update_nav_menu_item()`wp-includes/nav-menu.php`	Saves the properties of a menu item or create a new one.

Show 2 more Show less

Changelog

Version	Description
3.0.0	Introduced.

User Contributed Notes

Skip to note 12 content

Stefano

10 years ago

Building bootstrap 3 menu with submenu items without use WP_nav_walker (boostrap)! (Require bootstrap.css and bootstrap.js)

' ."n";
        $menu_list .= '<div class="container-fluid">' ."n";
        $menu_list .= '<!-- Brand and toggle get grouped for better mobile display -->' ."n";
        $menu_list .= '<div class="navbar-header">' ."n";
        $menu_list .= '<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1" aria-expanded="false">' ."n";
        $menu_list .= '<span class="sr-only">Toggle navigation</span>' ."n";
        $menu_list .= '<span class="icon-bar"></span>' ."n";
        $menu_list .= '<span class="icon-bar"></span>' ."n";
        $menu_list .= '<span class="icon-bar"></span>' ."n";
        $menu_list .= '</button>' ."n";
		$menu_list .= '<a class="navbar-brand" href="' . home_url() . '">' . get_bloginfo( 'name' ) . '</a>';
        $menu_list .= '</div>' ."n";
          
        $menu_list .= '<!-- Collect the nav links, forms, and other content for toggling -->';
		
		
        $menu = get_term( $locations[$theme_location], 'nav_menu' );
        $menu_items = wp_get_nav_menu_items($menu->term_id);

        $menu_list .= '<div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">' ."n";
        $menu_list .= '<ul class="nav navbar-nav">' ."n";
         
        foreach( $menu_items as $menu_item ) {
			if( $menu_item->menu_item_parent == 0 ) {
				
				$parent = $menu_item->ID;
				
				$menu_array = array();
				foreach( $menu_items as $submenu ) {
					if( $submenu->menu_item_parent == $parent ) {
						$bool = true;
						$menu_array[] = '<li><a href="' . $submenu->url . '">' . $submenu->title . '</a></li>' ."n";
					}
				}
				if( $bool == true && count( $menu_array ) > 0 ) {
					
					$menu_list .= '<li class="dropdown">' ."n";
					$menu_list .= '<a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">' . $menu_item->title . ' <span class="caret"></span></a>' ."n";
					
					$menu_list .= '<ul class="dropdown-menu">' ."n";
					$menu_list .= implode( "n", $menu_array );
					$menu_list .= '</ul>' ."n";
					
				} else {
					
					$menu_list .= '<li>' ."n";
					$menu_list .= '<a href="' . $menu_item->url . '">' . $menu_item->title . '</a>' ."n";
				}
				
			}
			
			// end <li>
			$menu_list .= '</li>' ."n";
        }
         
        $menu_list .= '</ul>' ."n";
        $menu_list .= '</div>' ."n";
		$menu_list .= '</div><!-- /.container-fluid -->' ."n";
        $menu_list .= '</nav>' ."n";
 
    } else {
        $menu_list = '<!-- no menu defined in location "'.$theme_location.'" -->';
    }
	
	echo $menu_list;
}
?>

Seems that you need to put lines 62-63 inside the if statement if( $menu_item->menu_item_parent == 0 ) Otherwise there will be several closing li tags not closing anything for all submenu items since they have parents and won’t pass this check.

Gukis 2 years ago

Skip to note 13 content

Andrija Naglic

11 years ago

Building menu list with children (submenus) and selecting the menu by it’s location:

// Intented to use with locations, like 'primary'
// clean_custom_menu("primary");

#add in your theme functions.php file

function clean_custom_menu( $theme_location ) {
	if ( ($theme_location) && ($locations = get_nav_menu_locations()) && isset($locations[$theme_location]) ) {
		$menu = get_term( $locations[$theme_location], 'nav_menu' );
		$menu_items = wp_get_nav_menu_items($menu->term_id);

		$menu_list  = '<nav>' ."n";
		$menu_list .= '<ul class="main-nav">' ."n";

		$count = 0;
		$submenu = false;
		
		foreach( $menu_items as $menu_item ) {
			
			$link = $menu_item->url;
			$title = $menu_item->title;
			
			if ( !$menu_item->menu_item_parent ) {
				$parent_id = $menu_item->ID;
				
				$menu_list .= '<li class="item">' ."n";
				$menu_list .= '<a href="'.$link.'" class="title">'.$title.'</a>' ."n";
			}

			if ( $parent_id == $menu_item->menu_item_parent ) {

				if ( !$submenu ) {
					$submenu = true;
					$menu_list .= '<ul class="sub-menu">' ."n";
				}

				$menu_list .= '<li class="item">' ."n";
				$menu_list .= '<a href="'.$link.'" class="title">'.$title.'</a>' ."n";
				$menu_list .= '</li>' ."n";
					

				if ( $menu_items[ $count + 1 ]->menu_item_parent != $parent_id && $submenu ){
					$menu_list .= '</ul>' ."n";
					$submenu = false;
				}

			}

			if ( $menu_items[ $count + 1 ]->menu_item_parent != $parent_id ) { 
				$menu_list .= '</li>' ."n";      
				$submenu = false;
			}

			$count++;
		}
		
		$menu_list .= '</ul>' ."n";
		$menu_list .= '</nav>' ."n";

	} else {
		$menu_list = '<!-- no menu defined in location "'.$theme_location.'" -->';
	}
	echo $menu_list;
}

Skip to note 14 content

Cesar Jefferson Aquino Maximiliano

10 years ago

You must log in to vote on the helpfulness of this noteVote results for this note: 5You must log in to vote on the helpfulness of this note
Get simple array of menu.
```
function wp_get_menu_array($current_menu) {

    $array_menu = wp_get_nav_menu_items($current_menu);
	$menu = array();
	foreach ($array_menu as $m) {
		if (empty($m->menu_item_parent)) {
			$menu[$m->ID] = array();
			$menu[$m->ID]['ID'] 		= 	$m->ID;
			$menu[$m->ID]['title'] 		= 	$m->title;
			$menu[$m->ID]['url'] 		= 	$m->url;
			$menu[$m->ID]['children']	= 	array();
		}
	}
	$submenu = array();
	foreach ($array_menu as $m) {
		if ($m->menu_item_parent) {
			$submenu[$m->ID] = array();
			$submenu[$m->ID]['ID'] 		= 	$m->ID;
			$submenu[$m->ID]['title']	= 	$m->title;
			$submenu[$m->ID]['url'] 	= 	$m->url;
			$menu[$m->menu_item_parent]['children'][$m->ID] = $submenu[$m->ID];
		}
	}
    return $menu;
    
}
```
- A simplified and more ‘JSON Friendly’ take:
  
  function get_menu($current_menu) { $array_menu = wp_get_nav_menu_items($current_menu); $menu = array(); $refs = array(); foreach ($array_menu as $m) { if (empty($m->menu_item_parent)) { $curMenu = array(); $curMenu['id'] = $m->ID; $curMenu['title'] = $m->title; $curMenu['url'] = $m->url; $curMenu['children'] = array(); $refs[$m->ID] = count($menu); array_push($menu, $curMenu); } else { $submenu = array(); $submenu['id'] = $m->ID; $submenu['title'] = $m->title; $submenu['url'] = $m->url; array_push($menu[$refs[$m->menu_item_parent]]['children'], $submenu); } } return $menu; }
  
  charlyripp 7 years ago
- modified to get nested menu function wp_get_nested_menu_array($current_menu) { $array_menu = wp_get_nav_menu_items($current_menu); $menu = array(); foreach ($array_menu as $m) { if (empty($m->menu_item_parent)) { $menu[$m->ID] = array(); $menu[$m->ID]['ID'] = $m->ID; $menu[$m->ID]['title'] = $m->title; $menu[$m->ID]['url'] = $m->url; $menu[$m->ID]['children'] = array(); } } $submenu = array(); foreach ($array_menu as $m) { if ($m->menu_item_parent) { $submenu[$m->ID] = array(); $submenu[$m->ID]['ID'] = $m->ID; $submenu[$m->ID]['title'] = $m->title; $submenu[$m->ID]['url'] = $m->url; $submenu[$m->ID]['parent'] = $m->menu_item_parent; if (isset($submenu[$m->menu_item_parent])) { $submenu[$m->menu_item_parent]['children'][$m->ID] = $submenu[$m->ID]; $mainparentid = $submenu[$m->menu_item_parent]['parent']; $menu[$mainparentid]['children'][$m->menu_item_parent] = $submenu[$m->menu_item_parent]; }else{ $menu[$m->menu_item_parent]['children'][$m->ID] = $submenu[$m->ID]; } } } return $menu; }
  
  kelvincys 5 years ago
Log in to add feedback

Skip to note 15 content

Codex

11 years ago

Building simple menu list

// Get the nav menu based on $menu_name (same as 'theme_location' or 'menu' arg to wp_nav_menu)
// This code based on wp_nav_menu's code to get Menu ID from menu slug

$menu_name = 'custom_menu_slug';

if ( ( $locations = get_nav_menu_locations() ) && isset( $locations[ $menu_name ] ) ) {
	$menu = wp_get_nav_menu_object( $locations[ $menu_name ] );

	$menu_items = wp_get_nav_menu_items($menu->term_id);

	$menu_list = '<ul id="menu-' . $menu_name . '">';

	foreach ( (array) $menu_items as $key => $menu_item ) {
		$title = $menu_item->title;
		$url = $menu_item->url;
		$menu_list .= '<li><a href="' . $url . '">' . $title . '</a></li>';
	}
	$menu_list .= '</ul>';
} else {
	$menu_list = '<ul><li>Menu "' . $menu_name . '" not defined.</li></ul>';
}
// $menu_list now ready to output

Skip to note 16 content

Aslam Ansari

5 years ago

/**
 * This code will generate a simple array of menu items in hierarchical(parent-child) order.
 * This array will also contain child field as "true" if the item has child items array, 
 * and custom active class if the link is active.
 */
$menu_lists = array();
$sub_parent = 0;

// Menu item array (note: "Menu 1" is the name of menu)
$menu_items = wp_get_nav_menu_items( 'Menu 1' );
foreach ( $menu_items as $menu_item ) {

    if ( in_array( $menu_item->object, array( 'page', 'custom' ) ) ) {
        $id = $menu_item->ID;
        $title = $menu_item->title;
        $link = $menu_item->url;
        $menu_item_parent = $menu_item->menu_item_parent;

        // if menu item has no parent, means this is the top-menu.
        if ( ! $menu_item_parent ) {
            $menu_lists[ $id ]['child'] = false;
            $menu_lists[ $id ]['id'] = $id;
            $menu_lists[ $id ]['title'] = $title;
            $menu_lists[ $id ]['link'] = $link;

            // add active field if current link and open url is same.
            if ( get_permalink() === $link ) {
                $menu_lists[ $id ]['active'] = 'current-menu-item';
            }
        } else {
            // if parent menu is set, means this is 2nd level menu
            if ( isset( $menu_lists[ $menu_item_parent ] ) ) {
                $menu_lists[ $menu_item_parent ]['child'] = true;
                $menu_lists[ $menu_item_parent ][ $id ]['child'] = false;
                $menu_lists[ $menu_item_parent ][ $id ]['id'] = $id;
                $menu_lists[ $menu_item_parent ][ $id ]['title'] = $title;
                $menu_lists[ $menu_item_parent ][ $id ]['link'] = $link;

                // add active field to current menu item and its parent menu item if current link and open url is same.
                if ( get_permalink() === $link ) {
                    $menu_lists[ $menu_item_parent ]['active'] = 'current-menu-item';
                    $menu_lists[ $menu_item_parent ][ $id ]['active'] = 'current-menu-item';
                }

                $sub_parent = $menu_item_parent;
            } elseif ( isset( $menu_lists[ $sub_parent ][ $menu_item_parent ] ) ) {
                // if parent menu is set and their parent menu is also set, means this is 3rd level menu
                $menu_lists[ $sub_parent ][ $menu_item_parent ]['child'] = true;
                $menu_lists[ $sub_parent ][ $menu_item_parent ][ $id ]['id'] = $id;
                $menu_lists[ $sub_parent ][ $menu_item_parent ][ $id ]['title'] = $title;
                $menu_lists[ $sub_parent ][ $menu_item_parent ][ $id ]['link'] = $link;

                // add active field to current menu item and its parent menu item if current link and open url is same.
                if ( get_permalink() === $link ) {
                    $menu_lists[ $sub_parent ]['active'] = 'current-menu-item';
                    $menu_lists[ $sub_parent ][ $menu_item_parent ]['active'] = 'current-menu-item';
                    $menu_lists[ $sub_parent ][ $menu_item_parent ][ $id ]['active'] = 'current-menu-item';
                }
            }
        }
    }
}

Skip to note 17 content

rachelboylson

5 years ago

Create a shortcode that takes a menu ID and prints a simple list of links. Add this to your functions.php file.
Shortcode syntax: [my_custom_navigation menu_id=123]

// load navigation shortcode
add_shortcode( 'wpdocs_custom_navigation', 'wpdocs_add_custom_navigation' );

// create shortcode for navigation
function wpdocs_add_custom_navigation( $attributes, $content = null ) {

    // shortcode takes in one argument which is the menu id
    $navigation_attributes = shortcode_atts( array(
        'menu_id' => '',
    ), $attributes );

    // get navigation menu items based on menu id passed from shortcode
    $menu_items = wp_get_nav_menu_items( $navigation_attributes['menu_id'] );

    // create an empty string which we will add onto
    $menu_html = '';

    // loop through array and build list of navigation links
    for ( $x = 0; $x < count( $menu_items ); $x++ ) {

        // get URL of menu item
        $url = $menu_items[ $x ]->url;

        // get title of menu item
        $title = $menu_items[ $x ]->title;

        // build HTML
        $menu_html .= '<a href="';
        $menu_html .= esc_attr( esc_url( $url ) );
        $menu_html .= '">';
        $menu_html .= wp_kses_post( $title );
        $menu_html .= '</a><br>';
    }

    // return navigation HTML
    return
    '<div id="menuWrapper">'
        . $menu_html .
    '</div>';
}

Skip to note 18 content

Saad Amin

8 years ago

I have tested this menu , it supports sub menu , submenu will have arrow , also current page parent and menu item will have active class.

$menu_name = 'header-menu';
if ( ( $locations = get_nav_menu_locations() ) && isset( $locations[ $menu_name ] ) ) {
	$menu = wp_get_nav_menu_object( $locations[ $menu_name ] );
 
	$menu_items = wp_get_nav_menu_items($menu->term_id);
	$menu_list = '';
	$count = 0;
	$submenu = false;$cpi=get_the_id();
	foreach( $menu_items as $current ) {
		if($cpi == $current->object_id ){if ( !$current->menu_item_parent ) {$cpi=$current->ID;}else{$cpi=$current->menu_item_parent;}$cai=$current->ID;break;}
	}
	foreach( $menu_items as $menu_item ) {
		$link = $menu_item->url;
		$title = $menu_item->title;
		$menu_item->ID==$cai ? $ac2=' current_menu' : $ac2='';
		if ( !$menu_item->menu_item_parent ) {
			$parent_id = $menu_item->ID;$parent_id==$cpi ? $ac=' current_item' : $ac='';
			if(!empty($menu_items[$count + 1]) && $menu_items[ $count + 1 ]->menu_item_parent == $parent_id ){//Checking has child
				$menu_list .= '<li class="dropdown has_child'.$ac.'"><a href="'.$link.'" class="dropdown-toggle'.$ac2.'" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false"><span class="nav-span"></span>'.$title.'<span class="caret"></span></a>';
			}else{
				$menu_list .= '<li class="'.$ac.'">' ."n";$menu_list .= '<a href="'.$link.'" class="'.$ac2.'">'.$title.'</a>' ."n";
			}
			
		}
		if ( $parent_id == $menu_item->menu_item_parent ) {
			if ( !$submenu ) {
				$submenu = true;
				$menu_list .= '<ul class="dropdown-menu">' ."n";
			}
			$menu_list .= '<li class="item">' ."n";
			$menu_list .= '<a href="'.$link.'" class="'.$ac2.'">'.$title.'</a>' ."n";
			$menu_list .= '</li>' ."n";
			if(empty($menu_items[$count + 1]) || $menu_items[ $count + 1 ]->menu_item_parent != $parent_id && $submenu){
				$menu_list .= '</ul>' ."n";
				$submenu = false;
			}
		}
		if (empty($menu_items[$count + 1]) || $menu_items[ $count + 1 ]->menu_item_parent != $parent_id ) { 
			$menu_list .= '</li>' ."n";      
			$submenu = false;
		}
		$count++;
	}
} else {
	$menu_list = '<li>Menu "' . $menu_name . '" not defined.</li>';
}
}

Skip to note 19 content

mathiasmadsen

5 years ago

Here are two functions that can be used to add the menu to the REST API and retrieve individual menu items:

function wpdocs_menu_route() {
	$menuLocations = get_nav_menu_locations(); // Get nav locations set in theme, usually functions.php)
	return $menuLocations;
}

add_action( 'rest_api_init', function () {
	register_rest_route( 'custom', '/menu/', array(
		'methods' => 'GET',
		'callback' => 'wpdocs_menu_route',
	) );
} );

function wpdocs_menu_single( $data ) {
	$menuID = $data['id']; // Get the menu from the ID
	$primaryNav = wp_get_nav_menu_items( $menuID ); // Get the array of wp objects, the nav items for our queried location.
	return $primaryNav;
}

add_action( 'rest_api_init', function () {
	register_rest_route( 'custom', '/menu/(?P<id>d+)', array(
		'methods' => 'GET',
		'callback' => 'wpdocs_menu_single',
	) );
} );

This allows us to access both:
https://example.com/wp-json/custom/menu and
https://example.com/wp-json/custom/menu/{menuID}

Skip to note 20 content

Hay

4 years ago

You must log in to vote on the helpfulness of this noteVote results for this note: 0You must log in to vote on the helpfulness of this note

If you’re having issues with this function returning empty arrays since version 6.0 (as i did) make sure you’re not accidentally adjusting the $query, for example by setting the post_type to a custom type in a pre_get_posts action.

Log in to add feedback

Skip to note 21 content

rohit0106

4 years ago

Build 3 level hierarchical menu

function create_bootstrap_menu( $theme_location ) {
    if ( ($theme_location) && ($locations = get_nav_menu_locations()) && isset($locations[$theme_location]) ) {
         

        $menu = get_term( $locations[$theme_location], 'nav_menu' );
        $menu_items = wp_get_nav_menu_items($menu->term_id);
		//echo '<pre>'; print_r($menu_items); die;
        $menu_list = '<ul>';
        $menucount = 1;
		$bool = true;
        foreach( $menu_items as $menu_item ) {
            if( $menu_item->menu_item_parent == 0 ) {
                 
                $parent = $menu_item->ID;
                 
                $menu_array = array();
                foreach( $menu_items as $submenu ) {
                    if( $submenu->menu_item_parent == $parent ) {
                        $bool = true;
                        $menu_array[] = '<li class="dropdown"><a href="' . $submenu->url . '" >' . $submenu->title . '</a><ul>';
						$parents = $submenu->ID;
						foreach($menu_items as $submenus){
							if( $submenus->menu_item_parent == $parents ) {
								$menu_array[] .= '<li><a href="' . $submenus->url . '" >' . $submenus->title . '</a></li>';
							}
						}
						$menu_array[] .= '</ul></li>';
                    }
                }
                if( $bool == true && count( $menu_array ) > 0 ) {
                     
                    $menu_list .= '<li class="dropdown">';
                    $menu_list .= '<a href="'.$menu_item->url.'"><span>'.$menu_item->title.'</span> <i class="bi bi-chevron-down"></i></a>';
                     
                    $menu_list .= '<ul>' ."n";
                    $menu_list .= implode( $menu_array );
                    $menu_list .= '</ul>';
                     
                } else {
                    // echo "<pre>"; print_r($menu_item); 
                    $menu_list .= '<li>';
                    $menu_list .= '<a class="nav-link scrollto active" href="'.$menu_item->url.'">' . $menu_item->title . '</a>';
                }
                 
            }
             
            // end <li>
            $menu_list .= '</li>';
			
			$menucount++;
        }
    } else {
        $menu_list = '<!-- no menu defined in location "'.$theme_location.'" -->';
    }
     
    return $menu_list;
}

Skip to note 22 content

ricjoh

3 years ago

Here’s a simple recursive solution to get an array of a menu and all submenus:

function wpdocs_recursive_menu_array( $current_menu ) {
	$menudata = wp_get_nav_menu_items( $current_menu );

	function _build( $ID, $data ) {
		$menu = array();

		foreach ( $data as $datum ) {
			if ( $datum->menu_item_parent === $ID )  {
				$menu[ $datum->ID ] = array(
					'ID'       => $datum->ID,
					'title'    => $datum->title,
					'url'      => $datum->url,
					'children' => _build( $datum->ID, $data )
				);
			}
		}

		return $menu;
	}

	return _build( 0, $menudata );
}

For some reason $menu didn’t work for me with a slug. I had to use I had to use this function at StackOverflow that converts the slug to the term id, and it works fine.

charly 2 years ago

云策 WordPress 开发者社区

函数文档