date() days in month function not working

[acassa]

I created a script that needs to get the number of days for the given month.
Problem is that when I ask it for the number of days in February it returns 31, and when I ask for March it returns 28.

Am I doing something wrong?

CODE:
<?php

$daysJan = date("t", mktime(0,0,0,1,0,2002));
$daysFeb = date("t", mktime(0,0,0,2,0,2002));
$daysMar = date("t", mktime(0,0,0,3,0,2002));

print("January: $daysJan days<br />February: $daysFeb days<br />March: $daysMar days<br />");

?>

RESULT:

January: 31 days
February: 31 days
March: 28 days

[nightowl]

probably because the 0'th of a month doesn't exist ...

with the 1st of hte month, it works.

[acassa]

Thank you!