如何隐藏子类别并显示其父类别

我有以下示意图：

    the world
        - Cover the world.
    
    The country
        -Covered the country.
    
    theater
        - theater cover.

etc...

我希望当我选择任何子类别时，父类别都会出现。

我的代码：

add_filter(\'get_the_terms\', \'hide_categories_terms\', 10, 3);

function hide_categories_terms($terms, $post_id, $taxonomy){

    // define which category IDs you want to hide
    $excludeIDs = array(31, 32, 33, 34, 35, 36, 37, 38, 96);

    // get all the terms 
    $exclude = array();
    foreach ($excludeIDs as $id) {
        $exclude[] = get_term_by(\'id\', $id, \'category\');
    }

    // filter the categories
    if (!is_admin()) {
        foreach($terms as $key => $term){
            if($term->taxonomy == "category"){
                foreach ($exclude as $exKey => $exTerm) {
                    if($term->term_id == $exTerm->term_id) unset($terms[$key]);
                }
            }
        }
    }

    return $terms;
}

但只需隐藏子类别。

add_filter(\'get_the_terms\', function($terms, $postId, $taxonomy) { // Return early if not a category, there is an error, or we are on the dashboard. if(\'category\' !== $taxonomy || is_wp_error($terms) || is_admin()) { return $terms; } // Create an array that will hold only parent categories $parents = []; // Loop on all the terms, keep the parents or get the parent of any child foreach ($terms as $term) { // This is a parent, add it and continue if(! $term->parent) { $parents[$term->term_id] = $term; continue; } // This is a child get its parent and add it $parent = get_term($term->parent, $taxonomy); if(is_a($parent, \'WP_Term\')) { $parents[$parent->term_id] = $parent; } } // Finally, reset the array keys and return it return array_values($parents); }, 10, 3);

add_filter(\'get_the_terms\', function($terms, $postId, $taxonomy) { // Return early if not a category, there is an error, or we are on the dashboard. if(\'category\' !== $taxonomy || is_wp_error($terms) || is_admin()) { return $terms; } // Categories to exclude $excludedIds = [31, 32, 33, 34, 35, 36, 37, 38, 96]; // Create an array that will hold only not excluded categories $categoriesToKeep = []; // Loop on all the terms, and replace the excluded categories with their parents foreach ($terms as $term) { // This is not in the excluded list, add it and continue if(! in_array($term->term_id, $excludedIds)) { $categoriesToKeep[$term->term_id] = $term; continue; } // This an excluded category, replace it with its parent $parent = get_term($term->parent, $taxonomy); if(is_a($parent, \'WP_Term\')) { $categoriesToKeep[$parent->term_id] = $parent; } } // Finally, reset the array keys and return it return array_values($categoriesToKeep); }, 10, 3);

搜索格式.php覆盖不起作用

我正在上Udemy课程，学习如何制作Wordpress插件和主题。我正在观看的视频让我通过searchform用一个自定义的搜索小部件覆盖默认的搜索小部件。php。根据我收集的信息，只要我遵循以下步骤，该文件应自动加载主题的其余部分：/主题目录/功能。php/* Some other code */ include ( get_theme_file_path(\'/includes/widgets.php\') ); add_action("widgets_init",

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