日期('YW',strtotime('2018-10-16')我们可以从周二开始获得周数吗?

I have used the date field that showed every week starting from Tuesday, the problem is to filter the data by date field is only worked by Sunday's date not Tuesday's date. I was checked but in Sunday for the above date is shown week number 41 on Tuesday it shows as 42 so that can't take correct data as I need. I mentioned my date field coding on below

 $this->db->where('str_to_date(concat(yearweek(s.creationdate), "tuesday"), "%X%V %W") =',date('YW',strtotime($parameters['cdatefrom']))