小编Cri*_*ter的帖子

我有一些帖子ID,我想从同一个网址设置这些帖子的特色图片.

这是我添加的邮政编码:

$catid = get_cat_ID("XX Cat");

$my_post = array(); 
$my_post['post_title'] = $title; 
$my_post['post_content'] = $description; 
$my_post['post_status'] = 'publish'; 
$my_post['post_author'] = 1; 
$my_post['post_category'] = array( $catid ); 

$post_id = wp_insert_post( $my_post );

示例:post_id = 1我想将精选图像设置为:example.com/image.png

我怎样才能做到这一点？