我有以下代码用于创建自定义帖子类型。一切正常保存功能正在触发，似乎正在保存。但我无法将保存的数据输出到页面编辑的文本字段中。我已经盯着它玩了好几天了。在线查看了每个教程。我想不出我在这里遗漏了什么。任何帮助都将不胜感激。

我试着改变10,2 但没有帮助。我尝试在save函数中编写新代码，您可以看到它被注释掉了，这也不起作用。

// Registers the new post type and taxonomy
function course_listing_posttype() {
    register_post_type( \'courses\',
        array(
            \'labels\' => array(
                \'name\' => __( \'Course Listings\' ),
                \'singular_name\' => __( \'Course Listing\' ),
                \'add_new\' => __( \'Add New Course\' ),
                \'add_new_item\' => __( \'Add New Course Listing\' ),
                \'edit_item\' => __( \'Edit Course Listing\' ),
                \'new_item\' => __( \'Add New Course Listing\' ),
                \'view_item\' => __( \'View Course Listing\' ),
                \'search_items\' => __( \'Search Course Listing\' ),
                \'not_found\' => __( \'No Course Listings found\' ),
                \'not_found_in_trash\' => __( \'No Course Listings found in trash\' )
            ),
            \'public\' => true,
            \'supports\' => array( \'title\', \'editor\', \'thumbnail\' ),
            \'capability_type\' => \'post\',
            \'rewrite\' => array("slug" => "courses"), // Permalinks format
            \'menu_position\' => 5,
            \'taxonomies\'    => array( \'regional\', \'national\', \'global\'), //figure out how to show this
            \'register_meta_box_cb\' => \'add_course_listing\'
        )
    );
}
add_action( \'init\', \'course_listing_posttype\' );

// Add Meta Boxes
function add_course_listing() {
    //meta for application deadline
    add_meta_box(\'course_listing_meta\', \'Course Listing Details\', \'course_listing_meta\', \'courses\', \'normal\', \'default\');
}
add_action("add_meta_boxes", "add_course_listing");

//application deadline meta
function course_listing_meta($object) {
    global $post; 
    wp_nonce_field(basename(__FILE__), "meta-box-nonce");
    ?>

    <label for="application_deadline"><strong>Application Deadline:</strong></label><br>
    <i>Select the deadline for the course application</i><br>
    <input type="text" id="application_deadline" name="application_deadline" value="<?php echo get_post_meta($object->ID, \'application_deadline\', true); ?>" size="120">
    <br><br>

    <label for="workshop_date"><strong>On-Site Workshop Dates:</strong></label><br>
    <i>Lorem ipsum dorem doleorum fibrouich forloer kolem lorey</i><br>
    <input type="text" id="workshop_date" name="workshop_date" value="<?php echo get_post_meta($object->ID, \'workshop_date\', true); ?>" size="120">
    <br><br>

    <label><strong>Contact Information:</strong></label><br>
    <i>Lorem ipsum dorem doleorum fibrouich forloer kolem lorey</i><br>
    <textarea type="text" id="contact_information" name="contact_information" value="<?php echo get_post_meta($object->ID, \'contact_information\', true); ?>" rows="10" cols="120"></textarea>
    <br><br>

    <label><strong>Directions:</strong></label><br>
    <i>Lorem ipsum dorem doleorum fibrouich forloer kolem lorey</i><br>
    <textarea type="text" id="directions" name="directions" value="<?php echo get_post_meta($object->ID, \'directions\', true); ?>" rows="10" cols="120"></textarea>
    <br><br>

    <label><strong>Hotels and Lodging:</strong></label><br>
    <i>Lorem ipsum dorem doleorum fibrouich forloer kolem lorey</i><br>
    <textarea type="text" id="lodging" name="lodging" value="<?php echo get_post_meta($object->ID, \'lodging\', true); ?>" rows="10" cols="120"></textarea>
    <br><br>

    <label><strong>Veterinarians Nearby:</strong></label><br>
    <i>Lorem ipsum dorem doleorum fibrouich forloer kolem lorey</i><br>
    <textarea type="text" id="veterinarians" name="veterinarians" value="<?php echo get_post_meta($object->ID, \'veterinarians\', true); ?>" rows="10" cols="120"></textarea>
    <br><br>

    <label><strong>State:</strong></label><br>
    <i>Lorem ipsum dorem doleorum fibrouich forloer kolem lorey</i><br>
    <input type="text" id="state" name="state" value="<?php echo get_post_meta($object->ID, \'state\', true); ?>" size="120">
    <br><br>

    <label><strong>Zip Code:</strong></label><br>
    <i>Lorem ipsum dorem doleorum fibrouich forloer kolem lorey</i><br>
    <input type="text" id="zip" name="zip" value="<?php echo get_post_meta($object->ID, \'zip\', true); ?>" size="120">
    <br><br>

<?php
}

// Save the Metabox Data
function wpt_save_events_meta($post_id, $post) {
        /*
        if (!isset($_POST["meta-box-nonce"]) || !wp_verify_nonce($_POST["meta-box-nonce"], basename(__FILE__)))
            return $post_id;

        if(!current_user_can("edit_post", $post_id))
            return $post_id;
        */
        //global $post;

        if(defined("DOING_AUTOSAVE") && DOING_AUTOSAVE)
            return $post_id;

        /*
        $slug = "post";
        if($slug != $post->post_type)
            return $post_id;
        */

        $meta_box_text_value = "";
        $meta_box_dropdown_value = "";
        $meta_box_checkbox_value = "";

        if ( isset( $_POST[\'contact_information\'] ) && $_POST[\'contact_information\'] != \'\' ) {
            update_post_meta( $meta_box_text_value, \'courses\', $_POST[\'contact_information\'] );
        }


        /*
        //save workshop date
        if(isset($_POST["contact_information"]))
        {
            $meta_box_text_value  = $_POST["contact_information"];
        }
        update_post_meta($post_id, "contact_information", $meta_box_text_value);
        */
}
add_action(\'save_post\', \'wpt_save_events_meta\', 10, 2); // save the custom fields