{"id":2919,"date":"2025-06-11T09:06:00","date_gmt":"2025-06-11T01:06:00","guid":{"rendered":"https:\/\/www.zhaozhao123.cn\/wpcms\/wpdt\/2919.html"},"modified":"2025-06-11T09:06:00","modified_gmt":"2025-06-11T01:06:00","slug":"%e5%a6%82%e4%bd%95%e5%9c%a8-wordpress-%e5%b0%8f%e5%b7%a5%e5%85%b7%e4%b8%ad%e6%98%be%e7%a4%ba%e7%a9%ba%e5%88%86%e7%b1%bb","status":"publish","type":"post","link":"https:\/\/www.zhaozhao123.cn\/wpcms\/post\/2919.html","title":{"rendered":"\u5982\u4f55\u5728 WordPress \u5c0f\u5de5\u5177\u4e2d\u663e\u793a\u7a7a\u5206\u7c7b"},"content":{"rendered":"
\r\n
\r\n
\r\n
\r\n
\r\n
\"Bug编译狮\"<\/figure>\r\n\r\n\r\n\r\n

Bug编译狮<\/p>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n\r\n\r\n\r\n

\r\n
\r\n

在WordPress小工具中显示空分类可以通过以下步骤实现：<\/p>\n

    \n
  1. \n

    创建一个新的自定义小工具<\/strong>：\n首先，你需要创建一个新的自定义小工具。这通常是在wp-content\/themes\/your-theme\/inc\/widgets.php<\/code>文件中完成的。<\/p>\n<\/li>\n

  2. \n

    编写HTML和CSS<\/strong>：\n在自定义小工具的PHP文件中，你可以添加一些简单的HTML和CSS来创建一个可以显示空分类的区域。这里我们使用了一个简单的列表来表示空分类。<\/p>\n<\/li>\n

  3. \n

    设置样式表<\/strong>：\n为这个小工具设置样式表，使其看起来更整洁。<\/p>\n<\/li>\n

  4. \n

    激活小工具<\/strong>：\n最后，确保将新的小工具添加到WordPress的后台并激活它。<\/p>\n<\/li>\n<\/ol>\n

    下面是一个示例代码，展示如何在WordPress小工具中显示空分类：<\/p>\n

    <?php\n\n\/**\n * 自定义小工具 - 显示空分类\n *\/\n\nclass EmptyCategoryWidget extends WP_Widget {\n\n    function __construct() {\n        parent::__construct(\n            'empty_category_widget', \/\/ Base ID\n            esc_html__( 'Empty Category Widget', 'text_domain' ), \/\/ Name\n            array( 'description' => esc_html__( 'Displays an empty category list.', 'text_domain' ) ) \/\/ Args\n        );\n    }\n\n    public function widget( $args, $instance ) {\n        extract($args);\n        $title = apply_filters('widget_title', $instance['title']);\n        echo $before_widget;\n        if (!empty($title)) {\n            echo $before_title . $title . $after_title;\n        }\n        ?>\n        <ul>\n            <?php\n                global $wpdb;\n\n                $categories = $wpdb->get_results(\"SELECT cat_ID FROM $wpdb->term_relationships WHERE term_taxonomy_id IN ( SELECT tt.term_taxonomy_id FROM $wpdb->term_taxonomy AS tt INNER JOIN $wpdb->terms AS t ON tt.term_id = t.term_id WHERE t.slug = 'uncategorized' )\");\n\n                foreach ($categories as $category) {\n                    $cat_name = get_term_by('id', $category->cat_ID, 'category')->name;\n                    echo \"<li>\" . $cat_name . \"<\/li>\";\n                }\n            ?>\n        <\/ul>\n        <?php\n        echo $after_widget;\n    }\n\n    public function form( $instance ) {\n        $title = !empty( $instance[ 'title' ] ) ? $instance[ 'title' ] : esc_html__( 'New Title', 'text_domain' );\n        ?>\n        <p>\n            <label for=\"<?php echo $this->get_field_id( 'title' ); ?>\"><?php _e( 'Title:' ); ?><\/label>\n            <input class=\"widefat\" id=\"<?php echo $this->get_field_id( 'title' ); ?>\" name=\"<?php echo $this->get_field_name( 'title' ); ?>\" type=\"text\" value=\"<?php echo esc_attr( $title ); ?>\">\n        <\/p>\n        <?php\n    }\n\n    public function update( $new_instance, $old_instance ) {\n        $instance = array();\n        $instance['title'] = ( !empty( $new_instance['title'] ) ) ? strip_tags( $new_instance['title'] ) : '';\n        return $instance;\n    }\n}\n\nregister_widget( 'EmptyCategoryWidget' );\n\n?><\/code><\/pre>\n
    使用步骤：<\/h3>\n
      \n
    1. 创建一个新的自定义小工具。<\/li>\n
    2. 打开inc\/widgets.php<\/code>文件（位于wp-content\/themes\/your-theme<\/code>目录下）。<\/li>\n
    3. 添加上述代码。<\/li>\n
    4. 设置小工具的标题、描述等信息。<\/li>\n
    5. 激活新创建的小工具。<\/li>\n<\/ol>\n
      效果：<\/h3>\n
      当启用此小工具时，在页面或侧边栏中会显示一个空分类列表，例如“Uncategorized”类别。<\/p>\n
      请注意，这只是一个基本示例，实际应用可能需要根据具体需求进行调整。此外，确保在生产环境中测试所有功能以避免任何潜在的问题。<\/p>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n<\/div>
      \r\n
      \r\n
      \r\n
      \r\n
      \r\n
      \"黑板前的Bug语法讲师\"<\/figure>\r\n\r\n\r\n\r\n
      黑板前的Bug语法讲师<\/p>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n\r\n\r\n\r\n
      \r\n
      \r\n
      如何在 WordPress 小工具中显示空分类<\/h3>\n
      在 WordPress 中，小工具是一种插件或扩展，可以添加额外的功能到网站上。一个常见的需求是在页面上展示一些特定类型的分类。例如，如果你有一个“产品”类别，你想在首页或其他页面上显示它，那么你可以创建一个自定义小工具来实现这个功能。<\/p>\n
      以下步骤将指导您如何在 WordPress 小工具中显示空分类：<\/p>\n
      1. 创建新插件<\/h4>\n
      首先，你需要创建一个新的插件文件夹并在其中创建一个 functions.php<\/code> 文件。在这个文件中，你会编写处理小工具和自定义功能的代码。<\/p>\n
      \/\/ functions.php\nfunction my_custom_widget() {\n    $args = array(\n        'title' => 'My Custom Widget',\n        'description' => 'This is a custom widget for displaying categories.',\n        'show_in_rest' => true,\n        'icon_url' => 'dashicons-admin-generic'\n    );\n\n    register_sidebar( array(\n        'name' => 'Sidebar Widget Area',\n        'id' => 'sidebar-widget-area',\n        'before_title' => '<h4>',\n        'after_title' => '<\/h4>',\n        'before_widget' => '<div id=\"%1$s\" class=\"widget %2$s\">',\n        'after_widget' => '<\/div>',\n        'before_title' => '<span>',\n        'after_title' => '<\/span>',\n        'description' => '',\n        'classname' => 'widget-content',\n        'description_class' => '',\n        'instance' => 0,\n    ) );\n\n    \/\/ Add a new category to the main post type.\n    wp_insert_term('my-custom-category', 'category');\n\n    return $args;\n}\nadd_action( 'widgets_init', 'my_custom_widget' );<\/code><\/pre>\n
      2. 添加小工具到主题<\/h4>\n
      接下来，在您的主题文件中添加小工具。这里我们假设您的主题名称为 My Theme<\/code>。<\/p>\n
      \/\/ theme.php\nadd_theme_support( 'post-thumbnails' );\nregister_nav_menus( array(\n    'primary' => __( 'Primary Menu' ),\n) );\nadd_image_size( 'my-image-size', 800, 600, false );\nregister_sidebar( array(\n    'name' => __( 'Sidebar Widget Area' ),\n    'id' => 'sidebar-1',\n    'description' => __( 'Add widgets here.' ),\n    'before_widget' => '<section id=\"%1$s\" class=\"widget %2$s\">',\n    'after_widget' => '<\/section>',\n    'before_title' => '<h3>',\n    'after_title' => '<\/h3>',\n) );<\/code><\/pre>\n
      3. 配置小工具选项<\/h4>\n
      在您的主题配置文件中，您可以设置小工具的外观、行为等选项。<\/p>\n
      \/\/ theme_options.php\n$theme_options = array(\n    'sidebars_widgets_count' => 5,\n);\nset_theme_mod( 'sidebars_widgets_count', $theme_options['sidebars_widgets_count'] );<\/code><\/pre>\n
      4. 使用小工具<\/h4>\n
      现在，当您激活并启用该插件时，它应该会自动注册到您的网站上。然后，您可以在任何需要的地方使用 get_categories()<\/code> 函数来获取当前的所有分类，并将其显示在指定的小工具区域中。<\/p>\n
      \/\/ 示例：显示所有分类的列表\nif ( ! function_exists( 'display_all_categories' ) ) :\n\/**\n * Display all categories in list format.\n *\n * @since 1.0.0\n *\/\nfunction display_all_categories() {\n    global $wp_query;\n\n    if ( empty( $wp_query->query_vars['cat'] ) ) {\n        return;\n    }\n\n    $categories = get_categories();\n\n    echo '<ul>';\n    foreach ( $categories as $category ) {\n        echo '<li><a href=\"' . esc_url( get_category_link( $category->term_id ) ) . '\">' . esc_html( $category->name ) . '<\/a><\/li>';\n    }\n    echo '<\/ul>';\n}\n\nadd_action( 'template_redirect', 'display_all_categories' );\nendif;\n\n\/\/ 使用小工具\necho '<div id=\"my-custom-widget\">';\necho '<h2>我的自定义小工具<\/h2>';\necho '<p>在这里添加您想要显示的分类。<\/p>';\necho '<form method=\"post\">';\necho '<input type=\"hidden\" name=\"action\" value=\"insert_category\">';\necho '<label for=\"category\">选择分类：<\/label>';\necho '<select id=\"category\" name=\"category\">';\nforeach ( get_categories() as $category ) {\n    echo '<option value=\"' . $category->term_id . '\">' . $category->name . '<\/option>';\n}\necho '<\/select>';\necho '<button type=\"submit\">插入分类<\/button>';\necho '<\/form>';\necho '<pre>';\necho do_shortcode('[my_custom_widget]');\necho '<\/pre>';\necho '<\/div>';<\/code><\/pre>\n
      以上就是在 WordPress 中创建一个自定义小工具以显示空分类的简单教程。通过上述步骤，您可以在不同的页面位置轻松地显示这些分类信息。<\/p>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n<\/div>\n","protected":false},"excerpt":{"rendered":"
      Bug编译狮 在WordPress小工具中显示空分类可以通过以&#1..<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[59],"tuisongtax":[],"class_list":["post-2919","post","type-post","status-publish","format-standard","hentry","category-wpdt","tag-pzjc"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.zhaozhao123.cn\/wpcms\/wp-json\/wp\/v2\/posts\/2919","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.zhaozhao123.cn\/wpcms\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.zhaozhao123.cn\/wpcms\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.zhaozhao123.cn\/wpcms\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.zhaozhao123.cn\/wpcms\/wp-json\/wp\/v2\/comments?post=2919"}],"version-history":[{"count":0,"href":"https:\/\/www.zhaozhao123.cn\/wpcms\/wp-json\/wp\/v2\/posts\/2919\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.zhaozhao123.cn\/wpcms\/wp-json\/wp\/v2\/media?parent=2919"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zhaozhao123.cn\/wpcms\/wp-json\/wp\/v2\/categories?post=2919"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zhaozhao123.cn\/wpcms\/wp-json\/wp\/v2\/tags?post=2919"},{"taxonomy":"tuisongtax","embeddable":true,"href":"https:\/\/www.zhaozhao123.cn\/wpcms\/wp-json\/wp\/v2\/tuisongtax?post=2919"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}