联表查询
D("column")
->field("{$DbPrefix}column.pid,{$DbPrefix}news.*")
->where(array("{$DbPrefix}news.style"=>"woman"))
->order("id desc")
->limit(20)
->join("__NEWS__ on __NEWS__.pid = __NEWS__.pid")
->select();
in查询
$where[‘pid’] = array(‘in’,array_column($arrID,’id’));
$result= D(‘news’)->where($where)->limit(3)->select();