How do I add hours to a date?

[Anon]

Hi there!

I'm hoping someone could help me with a small time calculation problem I have please.

My problem is that I want to add hours onto a time. eg, find the time in 'x' hours.

I currently grap the time using:
$today_datetime = date("Y-m-d H:i:s");

I then split this into individual segments so that the seconds can be calculated:
list ($year, $month, $day, $hour, $min, $sec) = split ('[- :]', $today_datetime);

And then use 'mktime' to calculate the Epoch time:
$today_date = mktime ($hour, $min, $sec, $month, $day, $year);

The problem now is how do I add 4 hours for example onto the current date, so that the time +4 is displayed?

eg, 13:20:00 +4 hours to display = 17:20:00

Thanks for your help!!!!

Paul

[amcgrath]

Just wondering, coulnd't you just add 4 hours worth of seconds(14400) to the timestamp then calculate the date?

[ashbai]

also i think u can pass a variable in between ..
which :
$hournew which is the normal $hour + 4 .. !!

try it ..

[Anon]

Sorry about that, i forgot to add that is there a way to just create seconds from hours? rather than using mktime.