Subtracting days, months or years from date using php [closed]

Question

I have a db table with a date field startBefore in ('Y-m-d') format. There are also 3 other int fields representing years, months and days. What I would like to do is to fill these three fields the new startAfter date in 'Y-m-d' format.

For example I have the '2001-11-14' as startBefore date and I would like to subtract 3 yrs, 7 months, 1 day to get the startAfter date.

Any ideas how I can accomplish this?

Thanks!

Answer 1

use strtotime('date -years -months -days')

  <?php     $time = strtotime('2001-11-14 -3 years -7 months -5 days');     echo $date = date("Y-m-d", $time);