Question

I need to check if the current time is within a certain range of fields within the DB.

For example in the DB I would store a start time, end time, start date, and end date.

I then need to check if the current date is within the rage of values returned by the query.

I have attempted:

WHERE start_date <= $currdate 
  AND end_date >= $currdate
  AND start_time <= $currtime
  AND end_time >= $currtime

Which works great, until we get a situation where the dates overlap two days, in which case the query returns NULL as end_time is obviously LESS than the current time.

I guess I need a way to combine start_date and start_time with end_date and end_time?

Answer 1

Have you tried timestamp()?

http://dev.mysql.com/doc/refman/5.5/en/date-and-time-functions.html#function_timestamp

Perhaps can do something like

WHERE timestamp(start_date, start_time) <= timestamp(currdate, currtime)
  AND timestamp(end_date, end_time) >= timestamp(currdate, currtime)

This is assuming, of course, that your start/end date and time are related. Not fully sure what the business logic is behind separating those two fields…