calculating day

[Anon]

Hi,
I have a little stupid problem:
I have two date and I have to calculate the day between the first and the second day.

For Example, if I have
$date1 = '05/21/2001';
$date2 = '05/31/2001';

$days = $date2 - $date1;

doesn't gives to me an error but it shows a nonsense result.
I have to calculate $days as a result of 10.

Any suggestions?

Thanx, Luca

[[deleted]]

Change the dates to the unix-timestamp using mktime(),
subtract the two timestamps,
re-format the date using date().