/**
* 用户操作日志
* @param int $uid 用户ID
* @param string $action 操作类型 tid=thread pid=post blogid=blog picid=picture doid=doing sid=share aid=article uid_cid/blogid_cid/sid_cid/picid_cid/aid_cid/topicid_cid=comment
* @return bool
*/
function useractionlog($uid, $action) {
        return helper_log::useractionlog($uid, $action);
}