通过XML-RPC使用“发送回溯到”字段的wordpress外的新帖子

Question

I want to create new post on my wordpress blog via XML-RPC.

Problem: I want to send Trackback URLs along with new post, just like we put URLs in wordpress panel (space separated) in Send Trackback to input box:

My code until now is:

$content = array( 
    'title'=>$title, 
    'description'=>$body, 
    'mt_allow_comments'=>0, // 1 to allow comments 
    'mt_allow_pings'=>0, // 1 to allow trackbacks 
    'post_type'=>'post', 
    'mt_keywords'=>$keywords, 
    'categories'=>array($category),
    'wp_post_thumbnail' =>  $thumbnail_id 
); 

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