画廊本质上只是一组附加的帖子，所以。。。

$post_id = 1; // set to your desired parent post
$attachments = new WP_Query( 
  array(
    \'post_parent\' => $post_id, // post to which the gallery is attached
    \'post_status\' => \'inherit\', 
    \'post_type\' => \'attachment\', 
    \'post_mime_type\' => \'image\', 
//  \'order\' => $order, 
//  \'orderby\' => $orderby
  ) 
);
// var_dump($attachments); // debug

foreach ($attachments->posts as $p) {
  var_dump($p);
  var_dump(wp_get_attachment_image_src($p->ID));
  var_dump(get_post_custom($p->ID));
}

您应该能够在转储的数据中找到所有需要的内容，以及更多内容。事实上，我认为您所需要的只是这些转储中的最后两个，因此您可以简化为：

$post_id = 1; // set to your desired parent post
$attachments = new WP_Query( 
  array(
    \'fields\' => \'ids\',
    \'post_parent\' => $post_id, // post to which the gallery is attached
    \'post_status\' => \'inherit\', 
    \'post_type\' => \'attachment\', 
    \'post_mime_type\' => \'image\', 
//  \'order\' => $order, 
//  \'orderby\' => $orderby
  ) 
);
// var_dump($attachments); 

foreach ($attachments->posts as $ids) {
  var_dump(wp_get_attachment_image_src($ids));
  var_dump(get_post_custom($ids));
}