怎么限制织梦会员每天投稿数量

$memberarcnum = $dsql->GetOne("SELECT count(*) FROM `dede_archives` WHERE mid='".$cfg_ml->M_ID."' AND FROM_UNIXTIME(senddate,'%Y-%m-%d') = curdate()");
//判断当前投稿数量是否大于3篇

if($memberarcnum['count(*)'] > 3)
{
    ShowMsg("对不起，您所在会员组每日只可投稿3篇！","/member/content_list.php?channelid=1");
    exit();
}

$memberarcnum['count(*)'] > 3  ，3这个数字可以任意修改，就是限制会员每天只可以发布3条