Wordpress 类别查询仅显示 4 个类别

Wordpress Category query to only show 4 categories

我试图在产品页面底部显示按 ID 排序的 4 个子类别

但是我不能让它只显示 4,它要么显示全部,要么 none?

$parent_id = 16;
$limit = 4;
$args = array(
        'hierarchical' => 1,
        'show_option_none' => '',
         'posts_per_page' => $limit, 
         'orderby' => 'ID', 
        'hide_empty' => 0, // Set to 0 to show empty categories and 1 to hide them
        'parent' => $parent_id,
        'taxonomy' => 'product_cat'
    );
    $subcategories = get_categories($args);
 
    foreach ($subcategories as $category) {
       echo '<li><a href="'. $link .'">'.$category->name.'</a></li>';
    }

如何让它只显示 4

谢谢

您需要在 $args 数组中使用 number 而不是 posts_per_page