删除导航菜单。

原型

wp_delete_nav_menu( int|string|WP_Term $menu )

参数

$menu (int|string|WP_Term) (Required) 菜单ID,slug,名称或对象。

返回值

(bool|WP_Error)  成功,虚假或

源文件

路径:wp-includes/nav-menu.php

<?php
...
function wp_delete_nav_menu( $menu ) {
	$menu = wp_get_nav_menu_object( $menu );
	if ( ! $menu )
		return false;
	$menu_objects = get_objects_in_term( $menu->term_id, 'nav_menu' );
	if ( ! empty( $menu_objects ) ) {
		foreach ( $menu_objects as $item ) {
			wp_delete_post( $item );
		}
	}
	$result = wp_delete_term( $menu->term_id, 'nav_menu' );
	// Remove this menu from any locations.
	$locations = get_nav_menu_locations();
	foreach ( $locations as $location => $menu_id ) {
		if ( $menu_id == $menu->term_id )
			$locations[ $location ] = 0;
	}
	set_theme_mod( 'nav_menu_locations', $locations );
	if ( $result && !is_wp_error($result) )
		/**
		 * Fires after a navigation menu has been successfully deleted.
		 *
		 * @since 3.0.0
		 *
		 * @param int $term_id ID of the deleted menu.
		 */
		do_action( 'wp_delete_nav_menu', $menu->term_id );
	return $result;
}
...
?>

其他

英文文档:https://developer.wordpress.org/reference/functions/wp_delete_nav_menu/