嘿，我是一个WP noob，但我的任务是从3.2升级WP。x至3.5。x、 现在一些图像没有显示。

下面是负责它的代码块：

$query = "select w1.guid,w2.post_title, w1.ID from wp_posts w1,wp_posts w2 where w2.id=w1.post_parent and w1.post_type=\'attachment\' and w1.post_parent in (".$post_a.") and w2.post_status=\'publish\' ORDER BY w2.post_date DESC ".$lim_." ";

$terms = $wpdb->get_results($query);
print_r($terms); // for debugging
for ($i = 0; $i < sizeof($terms); $i++) {
    $gallery_image_thumb = wp_get_attachment_image_src($terms[$i]->ID, \'thumbnail\');

    if ($size != "") {
        $result_[$i] = \'<img src="\'.$gallery_image_thumb[0].\'" alt="\'.$terms[$i]->post_title.\'" border="3"> \';
    } else {
        $result_[$i] = \'<img src="\'.$gallery_image_thumb[0].\'" alt="\'.$terms[$i]->post_title.\'" border="0">\';
    }

因此，对于一个部分，它正确地显示图像，但对于另一个部分，它生成的图像为空srcs

所以我打印了$terms 搜索结果数组，这是适用于该部分的内容：

Array ( [0] => stdClass Object ( [guid] => http://www.mysite.com/wp-content/uploads/2013/05/jmc-body.jpg [post_title] => jmc-body [ID] => 28358 ) [1] => stdClass Object ( [guid] => http://www.mysite.com/wp-content/uploads/2013/05/jmc-80.jpg [post_title] => jmc-80 [ID] => 28356 )

而这是$terms 无效节的数组：

Array ( [0] => stdClass Object ( [guid] => http://www.mysite.com/images/mysite/gallery_latest_images/ckc721.jpg [post_title] => CKC_704 [ID] => 25367 ) [1] => stdClass Object ( [guid] => http://www.mysite.com/images/mysite/gallery_latest_images/jmc1294toy.jpg [post_title] => JMC_1294 [ID] => 25366 )

所以我猜我需要在这行中添加一个if/else条件：$gallery\\u image\\u thumb=wp\\u get\\u attachment\\u image\\u src（$terms[$I]->ID，\'thumbnail\'）？我想wp_get_attachment_image_src 仅在上载中查看？有人知道一个干净的方法来解决这个问题吗？我不确定我能做什么样的“如果/否则”陈述。。。除非它是用于匹配guid的正则表达式？

function alter_upload_wpse_107016($upload) {
  remove_filter(\'upload_dir\',\'alter_upload_wpse_107016\');
  // alter $upload array
  return $upload;
}
if (1 === preg_match(\'|regex-to-check-guid|\',$terms[$i]->guid) {
  add_filter(\'upload_dir\',\'alter_upload_wpse_107016\');
}
$gallery_image_thumb = wp_get_attachment_image_src($terms[$i]->ID, \'thumbnail\');