$( ".my_accordion" ).accordion();<summary>
<div><img src="..."/>Summary1</div>
</summary>$metaData = wp_getdata('wp_metadata');
$posts = wp_getdata('wp_posts');
foreach ($metaData as $meta){
$delete = true;
foreach($posts as $post){
if ($meta['post_id'] === $post['id']) {
$delete = false;
break;
}
}
if ($delete) wp_deletePostMeta($meta['id'])
}