I have database for wordpress. My select box for day like 'monday', 'tuesday'. In wordpress postmata i have two metakey one is 'starting-date' and 'end-date'. User select day so fetech data from next day. like user select 'monday' so all data wii be 'next monday' data.
You can get day of next week by below code //code
echo date("F j, Y, g:i a",strtotime('next Monday')).'<br>'; –