How to Subtract Minutes

Question

I want to send a reminder email.I don\'t want to use cron on Linux/Unix/BSD box or Scheduled Tasks on Windows.

I\'m trying to subtract 15 minutes from t

Answer 1

How about substracting the 15 minutes from time() before converting it?

$time = time() - (15 * 60);

And then use $time instead of time() in your code.