Edit report at https://bugs.php.net/bug.php?id=63953&edit=1
ID: 63953
Comment by: kaido at tradenet dot ee
Reported by: gianluca dot pinna at allbus dot com
Summary: DateTime::diff produces a wrong DateInterval on DST
change
Status: Open
Type: Bug
Package: Date/time related
Operating System: Linux 64
PHP Version: 5.3.20
Block user comment: N
Private report: N
New Comment:
test script:
$d1 = new DateTime('2012-05-31');
$d2 = new DateTime('2013-03-02');
$diff1 = $d1->diff ($d2);
$diff2 = $d2->diff ($d1);
echo "case 1: ".$diff1->m." months, case 2: ".$diff2->m." months";
expected result:
both $diff1->m and $diff2->m are 9
Previous Comments:
------------------------------------------------------------------------
[2013-01-09 16:45:28] gianluca dot pinna at allbus dot com
Description:
------------
I have two dates, the second date is after a DST change.
I tried to get a diff between the two dates. Computing the difference between
the
timestamps I get the correct result (33 hours).
Using DateTime->diff() I get 34 hours. Is this expected?
Test script:
---------------
<?php
$originDate = new DateTime('2013-03-30 00:00:00', new
DateTimeZone('Europe/Rome'));
$destinationDate = new DateTime('2013-03-31 10:00:00', new
DateTimeZone('Europe/Rome'));
$diff = $destinationDate->getTimestamp() - $originDate->getTimestamp();
$dateinterval = $originDate->diff($destinationDate);
var_dump($diff/3600);
var_dump($dateinterval->d*24 + $dateinterval->h);
// int(33)
// int(34)
Expected result:
----------------
I would expect to always get 33 hours.
------------------------------------------------------------------------
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Edit this bug report at https://bugs.php.net/bug.php?id=63953&edit=1
