Bug #54340 [Opn->Asn]: DateTime::add() method bug

From: Date: Tue, 22 Mar 2011 08:27:36 +0000
Subject: Bug #54340 [Opn->Asn]: DateTime::add() method bug
References: 1  Groups: php.bugs 
Request: Send a blank email to php-bugs+get-159692@lists.php.net to get a copy of this message 
Edit report at http://bugs.php.net/bug.php?id=54340&edit=1

 ID:                 54340
 Updated by:         aharvey@php.net
 Reported by:        1cdecoder at gmail dot com
 Summary:            DateTime::add() method bug
-Status:             Open
+Status:             Assigned
 Type:               Bug
 Package:            Date/time related
 Operating System:   Windows 7 x64
 PHP Version:        5.3.6
-Assigned To:        
+Assigned To:        aharvey
 Block user comment: N
 Private report:     N

 New Comment:

Looks like we don't reset the DateTime object's timelib_rel_time
structure properly before altering it in add() (and sub(), for that
matter), and the first_last_day_of flag is causing issues.

Fix forthcoming.


Previous Comments:
------------------------------------------------------------------------
[2011-03-22 00:29:12] 1cdecoder at gmail dot com

Description:
------------
DateTime::add() method bug

Test script:
---------------
$date = new DateTime('first day of this month');
echo $date->format('Y-m-d H:i:sP');
$date->add(new DateInterval('P1D'));
echo $date->format('Y-m-d H:i:sP');

Expected result:
----------------
2011-03-01 01:17:31+02:00
2011-03-02 01:17:31+02:00 
Actual result:
--------------
2011-03-01 01:17:31+02:00
2011-03-01 01:17:31+02:00 


=================
====== BUT ======
=================

$date = new DateTime('first day of this month');
echo $date->format('Y-m-d H:i:sP');
$date->add(new DateInterval('P1M'));
echo $date->format('Y-m-d H:i:sP');

Expected result:
----------------
2011-03-01 01:17:31+02:00
2011-04-01 01:17:31+02:00 
Actual result:
--------------
2011-03-01 01:17:31+02:00
2011-04-01 01:17:31+02:00 




------------------------------------------------------------------------



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Edit this bug report at http://bugs.php.net/bug.php?id=54340&edit=1

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