Wordpress 仅查询当前术语存档的直接子术语和子术语

我在我的主题中使用woocommerce，它附带了一个

product\u cat

术语作为商店产品的默认类别。我需要在每个

产品上显示其直接子项和子项，但不显示子项

我试过：

    <?php $thispage = $wp_query->post; wp_list_categories("taxonomy=product_cat&term=". $term->slug."&title_li=&child_of=".$thispage->slug);?>

global $post;
    $terms = get_the_terms( $post->ID, 'product_cat');
    foreach ( $terms as $term )
    $currentID = get_the_ID();
    $args=array(
        'taxonomy'=>'product_cat',
        'term' => $term->slug,
        'child_of'=>$currentID
     );

    $my_query = new WP_Query( $args ); 
?>

    <?php if ( $my_query->have_posts() ): ?>
    <?php while ( $my_query->have_posts() ) : $my_query->the_post(); ?>
        <li> <a href="<?php the_permalink(); ?>" id="booklink"><?php the_title();?></a></li>
    <?php endwhile; ?>
<?php endif; ?>

并且它返回了当前存档的所有子项和子项子项，而没有子项本身

所以我试着：

    $term_id = $terms;
    $taxonomy_name = 'product_cat';
    $termchildren = get_term_children( $term_id, $taxonomy_name );

    echo '<ul>';
    foreach ( $termchildren as $child ) {
        $term = get_term_by( 'id', $child, $taxonomy_name );
        echo '<li><a href="' . get_term_link( $term->name, $taxonomy_name ) . '">' . $term->name . '</a></li>';
    }
    echo '</ul>';

也许我可以在一个查询args中检查它的所有子项，然后调用wp\u list\u类别。尝试：

 $terms = get_the_terms( $post->ID, 'product_cat'); foreach ( $terms as $term ) $currentID = get_the_ID(); $args=array( 'taxonomy'=>'product_cat', 'term' => $term->slug, 'exclude '=> array('child_of' => get_queried_object_id()) ); $my_query = new WP_Query( $args );?>

但它只返回子项的子项，而不返回Product_猫的子项

有人吗

我说不出话来。有人有线索吗

*对不起，我的英语很差
我想你可以这样做

    <?php
$taxonomy = 'product_cat';
// get the term IDs assigned to post.
$post_terms = wp_get_object_terms( $product->id, $taxonomy, array( 'fields' => 'ids' ) );
// separator between links
$separator = ', ';
if ( !empty( $post_terms ) && !is_wp_error( $post_terms ) ) {

    $term_ids = implode( ',' , $post_terms );
    $terms = wp_list_categories( 'title_li=&style=none&echo=0&child_of=' .get_queried_object_id() . '&taxonomy=' . $taxonomy . '&include=' . $term_ids );
    $terms = rtrim( trim( str_replace( '<br />',  $separator, $terms ) ), $separator );

    // display post categories
    echo  $terms;
}
?>


解决方案如下：
    <?php
$taxonomy = 'product_cat';
// get the term IDs assigned to post.
$post_terms = wp_get_object_terms( $product->id, $taxonomy, array( 'fields' => 'ids' ) );
// separator between links
$separator = ', ';
if ( !empty( $post_terms ) && !is_wp_error( $post_terms ) ) {

    $term_ids = implode( ',' , $post_terms );
    $terms = wp_list_categories( 'title_li=&style=none&echo=0&child_of=' .get_queried_object_id() . '&taxonomy=' . $taxonomy . '&include=' . $term_ids );
    $terms = rtrim( trim( str_replace( '<br />',  $separator, $terms ) ), $separator );

    // display post categories
    echo  $terms;
}
?>