我正试图从Woocommerce安装中拉出一个产品变体列表，并列出它们的属性-如下所示：

product id  variationid    name      color  size
5           1234           swimsuit  blue   10
5           1235           swimsuit  blue   12
5           1236           swimsuit  blue   14
5           1237           swimsuit  red    10

我可以获得变体ID和产品ID，以及产品名称，如下所示：

<?php
// Get the variations
$args = array( \'post_type\' => \'product_variation\');
$variationloop = new WP_Query( $args );
while ( $variationloop->have_posts() ) : $variationloop->the_post();
// get the parent of each variation
$parent = get_post($post->post_parent); 
// is the parent product live? 
if ($parent->post_status=="publish")
{
$parentid=$post->post_parent;
 echo $parentid;  // product
 echo $id; // variation id
 echo $parent->post_title;  // product name
}
?>

但我不知道Woocommerce是如何将变量与属性（如大小）联系起来的。如果我这样做：

 $sizes = get_the_terms($parentid ,\'pa_size\');
 foreach ( $sizes as $size ) {
   echo $size->name;
 }

然后我可以得到产品可用的所有尺寸，但我找不到如何检索仅与变体1234相关的尺寸。

+--------------+-------------------+-------------------+
| object_id    | term_taxonomy_id  | term_taxonomy_id  |
+--------------+-------------------+-------------------+
| 91           | 48                | 0                 |
+--------------+-------------------+-------------------+