Subtracting Time Problem

[coolumanga]

Hi Again

i have a two time values

$to=09:00:00

$from=10:00:00

$diff= $from -$to ...........

how do i do this ..... and also i want get answer as minites

plzzzzzz help me for solve this

[BulletTimeBill]

I'm not sure if there's an inbuilt function or something. But i'd use seconds to do the math then write a function to turn it into a string of a time format. Then there is this http://php.net/manual/en/function.strtotime.php if you want an actual time stamp....but then I always do stuff the hard way :P

[poyzn]

if your php >= 5.3 you can use date_diff function