tp3.2中between的用法

  $year = date("Y");
        $month = date("m");
        $day = date("d");
        $start = mktime(0,0,0,$month,$day,$year);//当天开始时间戳
        $end= mktime(23,59,59,$month,$day,$year);//当天结束时间戳

        $map['user_id'] =$user_id;
        $map['type'] ='1';
        $map['date'] =array('between',array($start,$end));

        $daymoney = M('Log')->where($map)->sum('money');