Getting day, month and year apart from Db

I store dates in the db as UNIX timestamps, this way it's easy to change the value.
You can then format the timestamps to a human readable date, this might help https://stackoverflow.com/a/29481073 .

Use

Code:

<input type="date" ...>

to edit the date at the frontend. See https://developer.mozilla.org/en-US/docs...input/date