如何排除分类中最低级别的术语？

我正在使用$custom_terms = get_term_children( $term_id, $taxonomy_name ); 显示当前分类术语的子术语。我想做的是排除第四级术语，因为我不想显示它们，也不想显示我迄今为止尝试过的任何内容\'hide_empty\' 和\'parent\' 没有为我工作过。

我发现这个问题与我想做的相似：https://stackoverflow.com/questions/28079153/wp-query-exclude-all-terms-of-a-custom-taxonomy

我不想明确声明要排除哪些术语，因为它们太多了，客户可能会添加更多。我需要它是动态的，并且不显示当前分类法的第四级术语。

我的分类有4个层次：

级别1>级别2>级别3>级别4

以下是我目前的代码：

$term_id = get_queried_object()->term_id;
$taxonomy_name = \'product_range\';
$custom_terms = get_term_children( $term_id, $taxonomy_name );

foreach($custom_terms as $custom_term) {

  $term = get_term_by( \'id\', $custom_term, $taxonomy_name );
  wp_reset_query();
  $args = array(
    \'post_type\' => \'product\',
    \'posts_per_page\' => 1,
    \'tax_query\' => array(
      array(
        \'taxonomy\' => \'product_range\',
        \'field\' => \'slug\',
        \'terms\' => $term->slug,
        \'parent\' => 0
        ),
     ),
  );
}

$term_id = get_queried_object()->term_id; $taxonomy_name = \'product_range\'; $custom_terms = get_term_children( $term_id, $taxonomy_name ); foreach ( $custom_terms as $custom_term ) { $term = get_term_by( \'id\', $custom_term, $taxonomy_name ); $terms_chilren = get_term_children( $term_id, $taxonomy_name ); wp_reset_query(); // if we can not get a term`s children, we can confirm the term is the fourth level term. if ( ! empty( $terms_chilren ) && ! is_wp_error( $terms_chilren ) ) { $args = [ \'post_type\' => \'product\', \'posts_per_page\' => 1, \'tax_query\' => [ [ \'taxonomy\' => \'product_range\', \'field\' => \'slug\', \'terms\' => $term->slug, \'parent\' => 0, ], ], ]; } }

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