{"id":1963,"date":"2025-06-10T18:24:13","date_gmt":"2025-06-10T10:24:13","guid":{"rendered":"https:\/\/www.zhaozhao123.cn\/wpcms\/wpdt\/1963.html"},"modified":"2025-06-10T18:24:13","modified_gmt":"2025-06-10T10:24:13","slug":"%e5%a6%82%e4%bd%95%e5%9c%a8%e4%bd%a0%e7%9a%84wordpress%e6%96%87%e7%ab%a0%e5%be%aa%e7%8e%af%e4%b8%ad%e4%bb%85%e6%98%be%e7%a4%ba%e5%ad%90%e7%b1%bb%e5%88%ab","status":"publish","type":"post","link":"https:\/\/www.zhaozhao123.cn\/wpcms\/post\/1963.html","title":{"rendered":"\u5982\u4f55\u5728\u4f60\u7684WordPress\u6587\u7ae0\u5faa\u73af\u4e2d\u4ec5\u663e\u793a\u5b50\u7c7b\u522b"},"content":{"rendered":"
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\"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

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要实现仅在WordPress文章循环中显示子类别（subcategories），你需要通过自定义函数来修改文章模板中的代码。以下是一些关键知识点和步骤：<\/p>\n

知识点<\/h3>\n
    \n
  1. 文章模板文件<\/strong>：WordPress的文章模板通常位于wp-content\/themes\/your-theme\/your-template.php<\/code>。<\/li>\n
  2. 循环结构<\/strong>：在文章模板中，你可以使用the_category()<\/code>或get_the_category()<\/code>函数来获取当前文章的分类信息。<\/li>\n
  3. 子类目<\/strong>：如果你有子类目（例如，一级分类下又分出二级、三级等），你需要确保这些分类被正确地处理。<\/li>\n<\/ol>\n

    示例代码<\/h3>\n

    假设你有一个顶级分类名为“General”，它下面有两个子分类：“Technology”和“Sports”。<\/p>\n

    步骤 1: 修改文章模板<\/h4>\n

    打开你的主题的index.php<\/code>或者archive.php<\/code>文件（取决于你是查看单篇文章还是整个分类页面）。找到文章循环部分，通常是类似这样的代码：<\/p>\n

    <?php if ( have_posts() ) : ?>\n    <?php while ( have_posts() ) : the_post(); ?>\n        <article id=\"post-<?php the_ID(); ?>\" <?php post_class(); ?>>\n            <!-- 标题、正文和其他内容 -->\n        <\/article>\n    <?php endwhile; ?>\n<?php endif; ?><\/code><\/pre>\n
    步骤 2: 添加子类目判断<\/h4>\n
    在上述代码之前添加以下代码，用于检查是否为子分类并只显示它们：<\/p>\n
    <?php $category = get_the_category();\nif ($category[0]->cat_parent == 0) { \/\/ 检查分类是否为顶级分类\n    echo '<div class=\"sub-category\">';\n    foreach ($category as $subCategory) {\n        echo '<h4>' . esc_html($subCategory->name) . '<\/h4>';\n        \/\/ 可以在这里继续添加其他内容\n    }\n    echo '<\/div>';\n} else {\n    \/\/ 这里可以添加显示顶级分类的内容\n}\n?><\/code><\/pre>\n
    步骤 3: 结果展示<\/h4>\n
    保存更改后，当你浏览某个分类页面时，你应该能看到所有顶级分类及其对应的子分类。<\/p>\n
    效果<\/h3>\n
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    • 当你在浏览某个分类页面时，如“General”的子分类页面，你会看到“General”作为标题，并且会显示其所有的子分类名称，比如“Technology”和“Sports”。如果某个子分类没有内容，可能不会显示出来。<\/li>\n<\/ul>\n
      注意事项<\/h3>\n
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      • 确保你的主题支持插件和主题功能。有些主题可能会限制对某些PHP代码的访问。<\/li>\n
      • 如果你的主题不支持直接修改文章模板，请考虑寻找更高级的主题或者使用插件来扩展功能。<\/li>\n<\/ul>\n
        以上就是如何在WordPress文章循环中仅显示子类目的基本方法。希望这对你有所帮助！<\/p>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n<\/div>
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        \"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
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        在WordPress的文章循环中，如果你想只显示特定的子类别，你可以使用categories<\/code>数组中的分类ID来过滤文章列表。以下是如何实现这个功能的方法：<\/p>\n
          \n
        1. 首先，在你的主题文件中添加一个类名为category-filter<\/code>的CSS样式表。<\/li>\n<\/ol>\n
          <style>\n.category-filter {\n  display: none;\n}\n<\/style><\/code><\/pre>\n
            \n
          1. 在你的主题文件中创建一个函数，用于获取当前页面上的分类ID。<\/li>\n<\/ol>\n
            function get_current_category() {\n    $current_category = '';\n    if (isset($_GET['cat'])) {\n        $current_category = $_GET['cat'];\n    } else {\n        $current_category = 'default';\n    }\n    return $current_category;\n}<\/code><\/pre>\n
              \n
            1. 创建一个函数，用于处理文章列表并应用分类过滤器。<\/li>\n<\/ol>\n
              function filter_posts_by_category($query) {\n    global $wp_query;\n\n    \/\/ 获取当前页面上的分类ID\n    $current_category = get_current_category();\n\n    \/\/ 如果没有指定分类ID，则默认显示所有文章\n    if ($current_category == 'default') {\n        $query->set('post_type', array('post'));\n    }\n\n    \/\/ 如果有指定分类ID，则限制文章类型为该分类\n    elseif (!empty($current_category)) {\n        $query->set('post_type', array('post', 'category'));\n        $query->set('posts_per_page', -1); \/\/ 设置每页最大数量为-1，以便全部显示\n\n        $args = array(\n            'cat' => $current_category,\n            'post_status' => array('publish'),\n            'order' => 'ASC',\n            'orderby' => 'menu_order'\n        );\n\n        $query->set('meta_key', '_wp_page_template');\n        $query->set('meta_value', 'page.php');\n\n        $query->set('post__not_in', array());\n        $query->set('paged', 1);\n        $query->set('posts_per_page', 10);\n\n        $query->set('ignore_sticky_posts', true);\n        $query->set('showposts', -1);\n        $query->set('no_found_rows', true);\n        $query->set('meta_query', array(array(\n            'key' => '_wp_page_template',\n            'value' => 'page.php',\n            'compare' => '=',\n            'type' => 'string',\n            'exclude' => false\n        )));\n\n        $query->set('tax_query', array(\n            array(\n                'taxonomy' => 'category',\n                'field' => 'term_id',\n                'terms' => $current_category\n            )\n        ));\n    }\n\n    return $query;\n}\n\nadd_filter('pre_get_posts', 'filter_posts_by_category');<\/code><\/pre>\n
                \n
              1. 使用上述函数修改文章列表视图以显示特定分类的文章。<\/li>\n<\/ol>\n
                function my_custom_post_listings( $query ) {\n    $current_category = get_current_category();\n    $query->set('cat', $current_category);\n    return $query;\n}\nadd_action('pre_get_posts', 'my_custom_post_listings');<\/code><\/pre>\n
                  \n
                1. 最后，在你的主题文件中启用分类过滤器。<\/li>\n<\/ol>\n
                  \/\/ 假设你的主题文件名为\"your-theme-name.php\"\nfunction enable_category_filter() {\n    add_filter('pre_get_posts', 'filter_posts_by_category');\n    add_filter('pre_get_posts', 'my_custom_post_listings');\n}\n\nadd_action('init', 'enable_category_filter');<\/code><\/pre>\n
                  现在，当你访问带有指定分类ID的文章时，将只显示与之匹配的文章。例如，如果你有一个名为”blog”的分类，并且你想查看包含”技术”标签的所有文章，请运行以下URL：http:\/\/example.com\/?cat=blog&tag=technology<\/code>。<\/p>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n<\/div>\n","protected":false},"excerpt":{"rendered":"
                  Bug编译狮 要实现仅在WordPress文章循环中显示子类别&#6..<\/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":[52,53],"tuisongtax":[],"class_list":["post-1963","post","type-post","status-publish","format-standard","hentry","category-wpdt","tag-ztjc","tag-ztmbpzjc"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.zhaozhao123.cn\/wpcms\/wp-json\/wp\/v2\/posts\/1963","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=1963"}],"version-history":[{"count":0,"href":"https:\/\/www.zhaozhao123.cn\/wpcms\/wp-json\/wp\/v2\/posts\/1963\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.zhaozhao123.cn\/wpcms\/wp-json\/wp\/v2\/media?parent=1963"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zhaozhao123.cn\/wpcms\/wp-json\/wp\/v2\/categories?post=1963"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zhaozhao123.cn\/wpcms\/wp-json\/wp\/v2\/tags?post=1963"},{"taxonomy":"tuisongtax","embeddable":true,"href":"https:\/\/www.zhaozhao123.cn\/wpcms\/wp-json\/wp\/v2\/tuisongtax?post=1963"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}