PHP: add seconds to a date

Question

I have $adate; which contains:

Tue Jan 4 07:59:59 2011

I want to add to this date the following:

$duration=674         


        

Answer 1

Given the fact that $adate is a timestamp (if that's the case), you could do something like this:

$duration = 674165;
$result_date = strtotime(sprintf('+%d seconds', $duration), $adate);
echo date('Y-m-d H:i:s', $result_date);