如何在WordPress中克隆页面？新手网页开发者技术咨询

作为新手，克隆页面有两种简单实用的方法，不用复杂操作就能搞定：

方法一：用插件快速克隆（推荐新手） #

• 登录WordPress后台，进入「插件」→「添加新插件」
• 搜索「Duplicate Page」，找到后点击「安装」→「启用」
• 启用后，去「页面」→「所有页面」，每个页面标题下方会多出一个「Clone」（克隆）按钮，点击就能直接生成该页面的副本
• 副本默认是草稿状态，你可以点击「编辑」修改内容，再发布就行

方法二：手动添加代码（无需插件） #

如果你不想装插件，也可以通过添加少量代码实现：

• 进入「外观」→「主题编辑器」，找到当前主题的「functions.php」文件
• 在文件末尾添加以下代码：

function duplicate_post_as_draft(){
    global $wpdb;
    if (! (isset($_GET['post']) || isset($_POST['post']) || (isset($_REQUEST['action']) && 'duplicate_post_as_draft' == $_REQUEST['action']) ) ) {
        wp_die('No post to duplicate has been supplied!');
    }

    $post_id = (isset($_GET['post']) ? absint($_GET['post']) : absint($_POST['post']));
    $post = get_post($post_id);

    if (isset($post) && $post != null) {
        $args = array(
            'comment_status' => $post->comment_status,
            'ping_status'    => $post->ping_status,
            'post_author'    => get_current_user_id(),
            'post_content'   => $post->post_content,
            'post_excerpt'   => $post->post_excerpt,
            'post_name'      => $post->post_name . '-copy',
            'post_parent'    => $post->post_parent,
            'post_password'  => $post->post_password,
            'post_status'    => 'draft',
            'post_title'     => $post->post_title . ' (副本)',
            'post_type'      => $post->post_type,
            'to_ping'        => $post->to_ping,
            'menu_order'     => $post->menu_order
        );

        $new_post_id = wp_insert_post($args);

        $taxonomies = get_object_taxonomies($post->post_type);
        foreach ($taxonomies as $taxonomy) {
            $post_terms = wp_get_object_terms($post_id, $taxonomy, array('fields' => 'slugs'));
            wp_set_object_terms($new_post_id, $post_terms, $taxonomy, false);
        }

        $post_meta_infos = $wpdb->get_results("SELECT meta_key, meta_value FROM $wpdb->postmeta WHERE post_id=$post_id");
        if (count($post_meta_infos)!=0) {
            $sql_query = "INSERT INTO $wpdb->postmeta (post_id, meta_key, meta_value) ";
            foreach ($post_meta_infos as $meta_info) {
                $meta_key = $meta_info->meta_key;
                if( $meta_key == '_wp_old_slug' ) continue;
                $meta_value = addslashes($meta_info->meta_value);
                $sql_query_sel[]= "SELECT $new_post_id, '$meta_key', '$meta_value'";
            }
            $sql_query.= implode(" UNION ALL ", $sql_query_sel);
            $wpdb->query($sql_query);
        }

        wp_redirect(admin_url('post.php?action=edit&post='.$new_post_id));
        exit;
    } else {
        wp_die('Post creation failed, could not find original post: ' . $post_id);
    }
}
add_action('admin_action_duplicate_post_as_draft', 'duplicate_post_as_draft');

function duplicate_post_link($actions, $post) {
    if (current_user_can('edit_posts')) {
        $actions['duplicate'] = '<a href="admin.php?action=duplicate_post_as_draft&post=' . $post->ID . '" title="克隆此页面" rel="permalink">克隆</a>';
    }
    return $actions;
}
add_filter('page_row_actions', 'duplicate_post_link', 10, 2);

• 保存修改后，回到「所有页面」，每个页面的操作栏里就会出现「克隆」选项，点击即可生成草稿状态的副本

注意：修改主题文件前最好先备份，避免出错导致网站异常。

内容的提问来源于stack exchange，提问作者Marconel Van der Merwe