Another Date Comparison problem

[Anon]

i am writing a report that runs by date selection, a start date and an end date. Of course the start date can not be greater than the end date so i put this in my code:

if ($start_date > $end_date)
.
.echo start date cant be greater than end date
.
else ................

but the code only works if the end dates day or month is less than the start days, example:

THIS WORKS
11-01-1970 = start date
11-02-2000 = end date
(start date is less than end date)

THIS DOESNT BUT SHOULD
11-01-1970 = start date
10-01-2000 = end date
(start date is still less than end date)

[matto]

it surely works if you convert the dates into timestamps, see the mktime function reference.

(this is just a workaround, I know ... but I love the php timestamp functions)

[Anon]

if you can elaborate just a little bit (im still new to coding) What i should do is

take $start_date = mktime (?)
$end_date = mktime(?)

and then compare the two??

Thanks for your help