WordPress 自定义元框不保存每个框的多个字段

Question

我在 WordPress 中创建了一个自定义元框，在同一个框中包含多个字段。我遇到的问题是，当我在 WP 管理员的字段中输入时，更改没有保存。

我已经创建了一个保存功能。保存适用于仅包含一个字段但不适用于多个字段的元框。

add_action('save_post', 'save_details');

add_action("admin_init", "admin_init");

function admin_init(){
add_meta_box("report-pdf-meta-01", "Report PDF #1", "report_pdf_01", "report", "normal", "high");
}

function save_details(){
       global $post;

       update_post_meta($post->ID, "report_pdf_01", $_POST["report_pdf_01"]);
       update_post_meta($post->ID, "report_pdf_title_01", $_POST["report_pdf_title_01"]);
}

   function report_pdf_01(){
       global $post;
       $custom = get_post_custom($post->ID);
       $report_pdf_01 = $custom["report_pdf_01"][0];
       $report_pdf_title_01 =  $custom["report_pdf_title_01"][0];
       ?>
<p><label>PDF Field:</label>
<input name="report_pdf_01" value="<?php echo $report_pdf_01; ?>" />
<p><label>Button Title:</label>
<input name="report_pdf_title_01" value="<?php echo $report_pdf_title_01; ?>" /></p>
<?php
   }

我假设这会导致字段保存，因为其他框在以相同方式设置一个字段时会这样做，但到目前为止情况并非如此。任何帮助将不胜感激！

Answer 1

您的代码似乎是正确的，但我建议进行一些修改，如下所述：

add_action('save_post', 'save_details', 10, 2);
add_action("admin_init", "register_custom_metaboxes"); //renaming the function so as to avoid confusion and conflicts.
function register_custom_metaboxes(){
    add_meta_box("report-pdf-meta-01", "Report PDF #1", "report_pdf_01", "report", "normal", "high");
}
function save_details($id, $post_data){
    //The $post_data object and current post ID are available to us to begin with.
    //Some necessary capabilities check mentioned below.
    if (!current_user_can("edit_post", $id)) {
        return $post_data;
    }
    if (defined("DOING_AUTOSAVE") && DOING_AUTOSAVE) {
        return $post_data;
    }
    //Just making sure that we are getting the correct data and to verify the received field names we log it into the file which will be created at the root directory level.
    error_log('Posted Data : '.print_r($_POST, true).PHP_EOL, 3, $_SERVER['DOCUMENT_ROOT'] . "/post.log");
    //sanitizing the data before saving.
    update_post_meta($id, "report_pdf_01", sanitize_text_field($_POST["report_pdf_01"]));
    update_post_meta($id, "report_pdf_title_01", sanitize_text_field($_POST["report_pdf_title_01"]));
}
function report_pdf_01(){
    global $post;
    //Retrieving post meta data by individual key in singular format and not array.
    $report_pdf_01 = get_post_meta($post->ID, "report_pdf_01", true);
    $report_pdf_title_01 =  get_post_meta($post->ID, "report_pdf_title_01", true);
    ?>
    <p><label>PDF Field:</label>
    <input name="report_pdf_01" value="<?php echo $report_pdf_01; ?>" />
    <p><label>Button Title:</label>
    <input name="report_pdf_title_01" value="<?php echo $report_pdf_title_01; ?>"/></p>
    <?php
}

WordPress 自定义元框不保存每个框的多个字段

WordPress custom meta-boxes not saving with multiple fields per box

php

wordpress

meta-boxes