Question

i am using zend framework and i want to know the hour difference between 2 dates.
I know how to do it in core php using strtotime.

But i want it in Zend, if at all possible.

Ex: These are my dates in datetime format:

2011-04-13 23:00:00

2011-04-14 15:45:00

Answer 1

It seems there is a sub() method in Zend_Date :

sub($date, $part = null, $locale =
null)
Subtracts the $part of
$date having a locale $locale from
the current object’s date.

Using Zend_Date::HOUR as $part should do the trick, I suppose :

$num_month = $firstDate->sub($secondDate, Zend_Date::HOUR);

As a sidenote : when working with strtotime(), dates are reprensented using UNIX Timestamps — which can only go from 1970 to 2038 (on 32 bits systems, at least)

It would probably wiser to work with the DateTime class, which allows one to manipulate a (virtually) unlimited range of dates.