是的，当然可以。这是在页面加载中获取所有类别的代码，这段代码将一直持续到第三代类别。

$cats = get_categories( array(\'taxonomy\' => \'product_cat\', \'hide_empty\' => true) );
foreach ($cats as $key => $cat):
    if ($cat->parent == 0):
        echo $cat->name;
        foreach ($cats as $key => $cat2):
            if ($cat2->parent == $cat->term_id):
                echo $cat2->name;
                foreach ($cats as $key => $cat3):
                    if ($cat3->parent == $cat2->term_id):
                        echo $cat3->name;
                    endif;
                endforeach;
            endif;
        endforeach;
    endif;
endforeach;