// 时间为当前是日期

      $date = strtotime(date('Y-m-d',time()));

      //dd($date);

      //UNIX_TIMESTAMP('2006-11-04 12:23:00');

      $where = "DATE_FORMAT(FROM_UNIXTIME(create_time),'%Y-%m-%d') = DATE_FORMAT(NOW(),'%Y-%m-%d')";

      $where = "UNIX_TIMESTAMP(DATE_FORMAT(FROM_UNIXTIME(create_time),'%Y-%m-%d')) = $date";

//转为int 

cast(DATE_FORMAT(FROM_UNIXTIME(UNIX_TIMESTAMP(c.time)),"%d") as signed) time