Wordpress 在我的插件上添加子菜单答案

【问题标题】：Wordpress adding a sub menu on my pluginWordpress 在我的插件上添加子菜单
【发布时间】：2017-10-19 11:18:52
【问题描述】：

我开始学习 wordpress 插件开发并尝试在我的插件中添加额外的子菜单，按照 post_type 上的文档，我正在尝试添加位于插件菜单底部的设置子菜单，这是我的代码。

add_action( 'init', 'br_post_type');
function br_post_type() {
    $labels = array(
        'name'               => _x( 'Book Reviews', 'post type general name', 'book-reviews' ),
        'singular_name'      => _x( 'Book Review', 'post type singular name', 'book-reviews' ),
        'menu_name'          => _x( 'Book Reviews', 'admin menu', 'book-reviews' ),
        'add_submenu_page'          => _x( 'Settings', 'admin menu', 'book-reviews' ),
        'name_admin_bar'     => _x( 'Book Review', 'add new on admin bar', 'book-reviews' ),
        'add_new'            => _x( 'Add New', 'book', 'book-reviews' ),
        'add_new_item'       => __( 'Add New Book', 'book-reviews' ),
        'new_item'           => __( 'New Book Review', 'book-reviews' ),
        'edit_item'          => __( 'Edit Book Review', 'book-reviews' ),
        'view_item'          => __( 'View Book Review', 'book-reviews' ),
        'all_items'          => __( 'All Books Review', 'book-reviews' ),
        'search_items'       => __( 'Search Books Review', 'book-reviews' ),
        'parent_item_colon'  => __( 'Parent Books Review:', 'book-reviews' ),
        'not_found'          => __( 'No review found.', 'book-reviews' ),
        'not_found_in_trash' => __( 'No books review found in Trash.', 'book-reviews' )
    );

    $args = array(
        'labels'             => $labels,
        'description'        => __( 'Book review for our site.', 'book-reviews' ),
        'public'             => true,
        'rewrite'            => array( 'slug' => 'book_review' ),
        'capability_type'    => 'post',
        'has_archive'        => true,
        'hierarchical'       => false,
        'menu_position'      => null,
        'supports'           => array( 'title', 'editor', 'author', 'thumbnail', 'excerpt', 'comments', 'custom-fields' ),
        'menu_icon'                  => 'dashicons-book'
    );

    register_post_type( 'book_review', $args );
}

我正在尝试像这样添加我的子菜单。

'add_submenu_page'          => _x( 'Settings', 'admin menu', 'book-reviews' ),

但是什么都没有显示，任何建议都会有所帮助，在此先感谢！

编辑以包含答案：

add_action('admin_menu', 'wpdocs_register_my_custom_submenu_page' );

function wpdocs_register_my_custom_submenu_page() {
    add_submenu_page(
        'edit.php?post_type=book_review',
        'My Custom Submenu Page',
        'My Custom Submenu Page',
        'manage_options',
        'my-custom-submenu-page',
        'wpdocs_my_custom_submenu_page_callback' );
}

function wpdocs_my_custom_submenu_page_callback() {
    echo '<div class="wrap"><div id="icon-tools" class="icon32"></div>';
        echo '<h2>My Custom Submenu Page</h2>';
    echo '</div>';
}

【问题讨论】：

标签： php wordpress submenu