: str_replace(): Passing null to parameter #2 ($replace) of type array|string is deprecated in
$original_title = $original_object->post_title;
} elseif ( 'post_type_archive' === $args['menu-item-type'] ) {
$original_object = get_post_type_object( $args['menu-item-object'] );
if ( $original_object ) {
$original_title = $original_object->labels->archives;
if ( wp_unslash( $args['menu-item-title'] ) === wp_specialchars_decode( $original_title ) ) {
$args['menu-item-title'] = '';
// Hack to get wp to create a post object when too many properties are empty.
if ( '' === $args['menu-item-title'] && '' === $args['menu-item-description'] ) {
$args['menu-item-description'] = ' ';
// Populate the menu item object.
'menu_order' => $args['menu-item-position'],
'post_content' => $args['menu-item-description'],
'post_excerpt' => $args['menu-item-attr-title'],
'post_parent' => $original_parent,
'post_title' => $args['menu-item-title'],
'post_type' => 'nav_menu_item',
$post_date = wp_resolve_post_date( $args['menu-item-post-date'], $args['menu-item-post-date-gmt'] );
$post['post_date'] = $post_date;
$update = 0 !== $menu_item_db_id;
// New menu item. Default is draft status.
$post['post_status'] = 'publish' === $args['menu-item-status'] ? 'publish' : 'draft';
$menu_item_db_id = wp_insert_post( $post, true, $fire_after_hooks );
if ( ! $menu_item_db_id || is_wp_error( $menu_item_db_id ) ) {
* Fires immediately after a new navigation menu item has been added.
* @see wp_update_nav_menu_item()
* @param int $menu_id ID of the updated menu.
* @param int $menu_item_db_id ID of the new menu item.
* @param array $args An array of arguments used to update/add the menu item.
do_action( 'wp_add_nav_menu_item', $menu_id, $menu_item_db_id, $args );
* Associate the menu item with the menu term.
* Only set the menu term if it isn't set to avoid unnecessary wp_get_object_terms().
if ( $menu_id && ( ! $update || ! is_object_in_term( $menu_item_db_id, 'nav_menu', (int) $menu->term_id ) ) ) {
$update_terms = wp_set_object_terms( $menu_item_db_id, array( $menu->term_id ), 'nav_menu' );
if ( is_wp_error( $update_terms ) ) {
if ( 'custom' === $args['menu-item-type'] ) {
$args['menu-item-object-id'] = $menu_item_db_id;
$args['menu-item-object'] = 'custom';
$menu_item_db_id = (int) $menu_item_db_id;
// Reset invalid `menu_item_parent`.
if ( (int) $args['menu-item-parent-id'] === $menu_item_db_id ) {
$args['menu-item-parent-id'] = 0;
update_post_meta( $menu_item_db_id, '_menu_item_type', sanitize_key( $args['menu-item-type'] ) );
update_post_meta( $menu_item_db_id, '_menu_item_menu_item_parent', (string) ( (int) $args['menu-item-parent-id'] ) );
update_post_meta( $menu_item_db_id, '_menu_item_object_id', (string) ( (int) $args['menu-item-object-id'] ) );
update_post_meta( $menu_item_db_id, '_menu_item_object', sanitize_key( $args['menu-item-object'] ) );
update_post_meta( $menu_item_db_id, '_menu_item_target', sanitize_key( $args['menu-item-target'] ) );
$args['menu-item-classes'] = array_map( 'sanitize_html_class', explode( ' ', $args['menu-item-classes'] ) );
$args['menu-item-xfn'] = implode( ' ', array_map( 'sanitize_html_class', explode( ' ', $args['menu-item-xfn'] ) ) );
update_post_meta( $menu_item_db_id, '_menu_item_classes', $args['menu-item-classes'] );
update_post_meta( $menu_item_db_id, '_menu_item_xfn', $args['menu-item-xfn'] );
update_post_meta( $menu_item_db_id, '_menu_item_url', sanitize_url( $args['menu-item-url'] ) );
update_post_meta( $menu_item_db_id, '_menu_item_orphaned', (string) time() );
} elseif ( get_post_meta( $menu_item_db_id, '_menu_item_orphaned' ) ) {
delete_post_meta( $menu_item_db_id, '_menu_item_orphaned' );
// Update existing menu item. Default is publish status.
$post['ID'] = $menu_item_db_id;
$post['post_status'] = ( 'draft' === $args['menu-item-status'] ) ? 'draft' : 'publish';
$update_post = wp_update_post( $post, true );
if ( is_wp_error( $update_post ) ) {
* Fires after a navigation menu item has been updated.
* @see wp_update_nav_menu_item()
* @param int $menu_id ID of the updated menu.
* @param int $menu_item_db_id ID of the updated menu item.
* @param array $args An array of arguments used to update a menu item.
do_action( 'wp_update_nav_menu_item', $menu_id, $menu_item_db_id, $args );
* Returns all navigation menu objects.
* @since 4.1.0 Default value of the 'orderby' argument was changed from 'none'
* @param array $args Optional. Array of arguments passed on to get_terms().
* @return WP_Term[] An array of menu objects.
function wp_get_nav_menus( $args = array() ) {
'taxonomy' => 'nav_menu',
$args = wp_parse_args( $args, $defaults );
* Filters the navigation menu objects being returned.
* @param WP_Term[] $menus An array of menu objects.
* @param array $args An array of arguments used to retrieve menu objects.
return apply_filters( 'wp_get_nav_menus', get_terms( $args ), $args );
* Determines whether a menu item is valid.
* @link https://core.trac.wordpress.org/ticket/13958
* @param object $item The menu item to check.
* @return bool False if invalid, otherwise true.
function _is_valid_nav_menu_item( $item ) {
return empty( $item->_invalid );
* Retrieves all menu items of a navigation menu.
* Note: Most arguments passed to the `$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.
* @param int|string|WP_Term $menu Menu ID, slug, name, or object.
* Optional. Arguments to pass to get_posts().
* @type string $order How to order nav menu items as queried with get_posts().
* Will be ignored if 'output' is ARRAY_A. Default 'ASC'.
* @type string $orderby 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'.
* @type string $post_type Menu items post type. Default 'nav_menu_item'.
* @type string $post_status Menu items post status. Default 'publish'.
* @type string $output How to order outputted menu items. Default ARRAY_A.
* @type string $output_key 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'.
* @type bool $nopaging Whether to retrieve all menu items (true) or paginate
* @type bool $update_menu_item_cache Whether to update the menu item cache. Default true.
* @return array|false Array of menu items, otherwise false.
function wp_get_nav_menu_items( $menu, $args = array() ) {
$menu = wp_get_nav_menu_object( $menu );
if ( ! taxonomy_exists( 'nav_menu' ) ) {
'orderby' => 'menu_order',
'post_type' => 'nav_menu_item',
'post_status' => 'publish',
'output_key' => 'menu_order',
'update_menu_item_cache' => true,
'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 );
$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'] ) {
$args['output_key'] => 'ASC',
foreach ( $items as $k => $item ) {
$items[ $k ]->{$args['output_key']} = $i++;
* Filters the navigation menu items being returned.
* @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 );
* Updates post and term caches for all linked objects for a list of menu items.
* @param WP_Post[] $menu_items Array of menu item post objects.
function update_menu_item_cache( $menu_items ) {
foreach ( $menu_items as $menu_item ) {
if ( 'nav_menu_item' !== $menu_item->post_type ) {
$object_id = get_post_meta( $menu_item->ID, '_menu_item_object_id', true );
$type = get_post_meta( $menu_item->ID, '_menu_item_type', true );
if ( 'post_type' === $type ) {
$post_ids[] = (int) $object_id;
} elseif ( 'taxonomy' === $type ) {
$term_ids[] = (int) $object_id;
if ( ! empty( $post_ids ) ) {
_prime_post_caches( $post_ids, false );
if ( ! empty( $term_ids ) ) {
_prime_term_caches( $term_ids );
* Decorates a menu item object with the shared navigation menu item properties.
* - ID: The term_id if the menu item represents a taxonomy term.
* - attr_title: The title attribute of the link element for this menu item.
* - classes: The array of class attribute values for the link element of this menu item.
* - db_id: The DB ID of this item as a nav_menu_item object, if it exists (0 if it doesn't exist).
* - description: The description of this menu item.
* - menu_item_parent: The DB ID of the nav_menu_item that is this item's menu parent, if any. 0 otherwise.
* - object: The type of object originally represented, such as 'category', 'post', or 'attachment'.
* - object_id: The DB ID of the original object this menu item represents, e.g. ID for posts and term_id for categories.
* - post_parent: The DB ID of the original object's parent object, if any (0 otherwise).
* - post_title: A "no title" label if menu item represents a post that lacks a title.
* - target: The target attribute of the link element for this menu item.
* - title: The title of this menu item.
* - type: The family of objects originally represented, such as 'post_type' or 'taxonomy'.
* - type_label: The singular label used to describe this type of menu item.
* - url: The URL to which this menu item points.
* - xfn: The XFN relationship expressed in the link of this menu item.
* - _invalid: Whether the menu item represents an object that no longer exists.
* @param object $menu_item The menu item to modify.
* @return object The menu item with standard menu item properties.
function wp_setup_nav_menu_item( $menu_item ) {
* Filters whether to short-circuit the wp_setup_nav_menu_item() output.
* Returning a non-null value from the filter will short-circuit wp_setup_nav_menu_item(),
* returning that value instead.
* @param object|null $modified_menu_item Modified menu item. Default null.
* @param object $menu_item The menu item to modify.
$pre_menu_item = apply_filters( 'pre_wp_setup_nav_menu_item', null, $menu_item );
if ( null !== $pre_menu_item ) {
if ( isset( $menu_item->post_type ) ) {
if ( 'nav_menu_item' === $menu_item->post_type ) {
$menu_item->db_id = (int) $menu_item->ID;
$menu_item->menu_item_parent = ! isset( $menu_item->menu_item_parent ) ? get_post_meta( $menu_item->ID, '_menu_item_menu_item_parent', true ) : $menu_item->menu_item_parent;
$menu_item->object_id = ! isset( $menu_item->object_id ) ? get_post_meta( $menu_item->ID, '_menu_item_object_id', true ) : $menu_item->object_id;
$menu_item->object = ! isset( $menu_item->object ) ? get_post_meta( $menu_item->ID, '_menu_item_object', true ) : $menu_item->object;
$menu_item->type = ! isset( $menu_item->type ) ? get_post_meta( $menu_item->ID, '_menu_item_type', true ) : $menu_item->type;
if ( 'post_type' === $menu_item->type ) {
$object = get_post_type_object( $menu_item->object );
$menu_item->type_label = $object->labels->singular_name;
// Denote post states for special pages (only in the admin).
if ( function_exists( 'get_post_states' ) ) {
$menu_post = get_post( $menu_item->object_id );
$post_states = get_post_states( $menu_post );
$menu_item->type_label = wp_strip_all_tags( implode( ', ', $post_states ) );
$menu_item->type_label = $menu_item->object;
$menu_item->_invalid = true;
if ( 'trash' === get_post_status( $menu_item->object_id ) ) {
$menu_item->_invalid = true;
$original_object = get_post( $menu_item->object_id );
if ( $original_object ) {
$menu_item->url = get_permalink( $original_object->ID );
/** This filter is documented in wp-includes/post-template.php */
$original_title = apply_filters( 'the_title', $original_object->post_title, $original_object->ID );
$menu_item->_invalid = true;
if ( '' === $original_title ) {
/* translators: %d: ID of a post. */
$original_title = sprintf( __( '#%d (no title)' ), $menu_item->object_id );
$menu_item->title = ( '' === $menu_item->post_title ) ? $original_title : $menu_item->post_title;
} elseif ( 'post_type_archive' === $menu_item->type ) {
$object = get_post_type_object( $menu_item->object );
$menu_item->title = ( '' === $menu_item->post_title ) ? $object->labels->archives : $menu_item->post_title;
$post_type_description = $object->description;
$post_type_description = '';
$menu_item->_invalid = true;
$menu_item->type_label = __( 'Post Type Archive' );
$post_content = wp_trim_words( $menu_item->post_content, 200 );
$post_type_description = ( '' === $post_content ) ? $post_type_description : $post_content;
$menu_item->url = get_post_type_archive_link( $menu_item->object );
} elseif ( 'taxonomy' === $menu_item->type ) {
$object = get_taxonomy( $menu_item->object );
$menu_item->type_label = $object->labels->singular_name;
$menu_item->type_label = $menu_item->object;
$menu_item->_invalid = true;
$original_object = get_term( (int) $menu_item->object_id, $menu_item->object );
if ( $original_object && ! is_wp_error( $original_object ) ) {
$menu_item->url = get_term_link( (int) $menu_item->object_id, $menu_item->object );
$original_title = $original_object->name;
$menu_item->_invalid = true;
if ( '' === $original_title ) {
/* translators: %d: ID of a term. */
$original_title = sprintf( __( '#%d (no title)' ), $menu_item->object_id );
$menu_item->title = ( '' === $menu_item->post_title ) ? $original_title : $menu_item->post_title;
$menu_item->type_label = __( 'Custom Link' );
$menu_item->title = $menu_item->post_title;
$menu_item->url = ! isset( $menu_item->url ) ? get_post_meta( $menu_item->ID, '_menu_item_url', true ) : $menu_item->url;
$menu_item->target = ! isset( $menu_item->target ) ? get_post_meta( $menu_item->ID, '_menu_item_target', true ) : $menu_item->target;
* Filters a navigation menu item's title attribute.
* @param string $item_title The menu item title attribute.
$menu_item->attr_title = ! isset( $menu_item->attr_title ) ? apply_filters( 'nav_menu_attr_title', $menu_item->post_excerpt ) : $menu_item->attr_title;
if ( ! isset( $menu_item->description ) ) {
* Filters a navigation menu item's description.
* @param string $description The menu item description.
$menu_item->description = apply_filters( 'nav_menu_description', wp_trim_words( $menu_item->post_content, 200 ) );
$menu_item->classes = ! isset( $menu_item->classes ) ? (array) get_post_meta( $menu_item->ID, '_menu_item_classes', true ) : $menu_item->classes;
$menu_item->xfn = ! isset( $menu_item->xfn ) ? get_post_meta( $menu_item->ID, '_menu_item_xfn', true ) : $menu_item->xfn;
$menu_item->menu_item_parent = 0;
$menu_item->object_id = (int) $menu_item->ID;
$menu_item->type = 'post_type';
$object = get_post_type_object( $menu_item->post_type );
$menu_item->object = $object->name;
$menu_item->type_label = $object->labels->singular_name;
if ( '' === $menu_item->post_title ) {
/* translators: %d: ID of a post. */
$menu_item->post_title = sprintf( __( '#%d (no title)' ), $menu_item->ID );
$menu_item->title = $menu_item->post_title;
$menu_item->url = get_permalink( $menu_item->ID );
/** This filter is documented in wp-includes/nav-menu.php */
$menu_item->attr_title = apply_filters( 'nav_menu_attr_title', '' );
/** This filter is documented in wp-includes/nav-menu.php */
$menu_item->description = apply_filters( 'nav_menu_description', '' );
$menu_item->classes = array();