PHP Calculating future date by adding days to a variable date

Question

I was looking at this post, and it is close to what I need: PHP - How to count 60 days from the add date

However, in that post, the calculation is performed by addi

Answer 1

I see you are retriving data from a database. If you are using mysql you can do it on the select:

Example: you need the last date of the table and this date-7 days

select max(datefield) as ultimaf, DATE_SUB(max(datefield),INTERVAL 7 DAY) as last7
from table

It´s easy use curdate() if you want todays date.

If you need a dynamic between that selects the count of last 7 days:

select count(*) from table
where DATE_SUB(CURDATE(),INTERVAL 7 DAY)<=datefield"