你想要的是custom meta box.

搜索这个网站也会给你很多例子，但这里有一个简短的概述。

你陷入了add_meta_boxes 适当地打电话，add_meta_box.

<?php
add_action(\'add_meta_boxes\', \'wpse87567_add_box\');
function wpse87567_add_box($post_type)
{
    // $post_type the "page" on which the `add_meta_boxes` action is being fired
    // It could be commends or could be a post type. It\'s really only
    // useful if you want to dynamically add a meta box everywhere.

    add_meta_box(
        \'wpse87567-box\', // the meta box ID, can be anything
        __(\'A Meta Box\', \'wpse\'), // your meta box title
        \'wpse87567_box_callback\', // the callback, the function that spits our your meta box contents (eg. fields)
        \'landing_page\', // the post type to which you wish to add the meta box
        \'side\', // where should you put it? side, normal, or advanced
        \'low\' // how important is it? high, core, default, or low
    );
}

function wpse87567_box_callback($post)
{
    // post is the current page\'s post object, use it to fetch your additional
    // meta data via `get_post_meta` or the like.

    // spit out your HTML fields here
}

<?php
add_action(\'save_post\', \'wpse87567_save\', 10, 2);
function wpse87567_save($post_id, $post)
{
    // make sure we aren\'t doing an autosave
    if (defined(\'DOING_AUTOSAVE\') && DOING_AUTOSAVE) {
        return;
    }

    // check if your post types match: do you need to save...
    if (\'landing_page\' !== $post->post_type) {
        return;
    }

    // If you used a nonce above, and you should have, check it here.


    // See if the current user can edit the post
    // `edit_post` should be whatever capability your post type was
    // registered with. Maybe be `edit_page` or `edit_landing_page`, etc
    if (!current_user_can(\'edit_post\', $post_id)) {
        return;
    }

    // if you\'re here, save stuff.

    if (!empty($_POST[\'some_field_from_the_callback\'])) {
        update_post_meta(
            $post_id,
            \'_your_meta_key\',
            esc_attr(strip_tags($_POST[\'some_field_from_the_callback\']))
        );
    } else {
        delete_post_meta($post_id, \'_your_meta_key\');
    }
}

您正在寻找元框。

法典中有很多关于meta boxes. 查看该页上的示例，并根据需要进行调整。

有很多插件提供类似的功能。我用过WP Alchemy Class 取得了巨大的成功；它非常专注于开发人员，不适合胆小的人。我也涉猎过一些Advanced Custom Fields 插件，它更容易使用，但并不总是做你需要的事情。

Redux还有一个元盒扩展，可以将面板和元盒连接在一起。。）http://reduxframework.com/extensions/