Bug #63863 [Opn->Csd]: DateTime:setDate() date not used after modify("last day of...")

From: Date: Wed, 29 Jun 2016 17:34:30 +0000
Subject: Bug #63863 [Opn->Csd]: DateTime:setDate() date not used after modify("last day of...")
References: 1  Groups: php.bugs 
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Edit report at https://bugs.php.net/bug.php?id=63863&edit=1

 ID:                 63863
 Updated by:         cmb@php.net
 Reported by:        brian dot feaver at sellingsource dot com
 Summary:            DateTime:setDate() date not used after modify("last
                     day of...")
-Status:             Open
+Status:             Closed
 Type:               Bug
 Package:            Date/time related
 Operating System:   Mac OS X
 PHP Version:        5.3.20
-Assigned To:        
+Assigned To:        cmb
 Block user comment: N
 Private report:     N

 New Comment:

This issue has been fixed as of PHP 5.6.19 and 7.0.4, see
<https://3v4l.org/ATGLp> and <https://3v4l.org/H3jZY>.


Previous Comments:
------------------------------------------------------------------------
[2016-05-26 03:48:53] php dot net at multiwebinc dot com

This seems to happen only when using certain relative formats to create the DateTime object, such as
'last day of next month' or 'first day of this month', however 'last sat of
July 2008' *does not* cause the error.

------------------------------------------------------------------------
[2016-05-03 16:21:44] php-bugs at allenjb dot me dot uk

This also happens after using a "descriptive string" in the constructor:

$dtEnd = new \DateTime("last day of last month");
var_dump($dtEnd);
$dtEnd = $dtEnd->setDate(2016, 04, 03);
var_dump($dtEnd);

3v4l.org shows this bug appears to be in all versions of PHP 5 + 7 to date.

------------------------------------------------------------------------
[2015-10-30 04:45:47] whitearchey at gmail dot com

A simple workaround:
$date->modify('+0 day');

------------------------------------------------------------------------
[2014-06-25 11:01:34] gsdev at me dot com

Hi,

This is happening on Mac OS X 10.8.5

PHP 5.5.0 (cli) (built: Jun 21 2013 12:09:38) 
Copyright (c) 1997-2013 The PHP Group
Zend Engine v2.5.0-dev, Copyright (c) 1998-2013 Zend Technologies
    with Xdebug v2.2.2, Copyright (c) 2002-2013, by Derick Rethans

It looks to be working in PHP 5.2 but broke in PHP 5.3 onwards.

http://3v4l.org/H3jZY

<?php


		date_default_timezone_set('UTC');
 
		$date = new DateTime(null, new DateTimeZone('UTC'));
		$date->setTime(0,0,0);
		$date->modify('next month');
		$date->modify('last day of this month');
		$date->setDate(2014, 1, 21);

		// This should be 21st Jan 2014
		echo $date->format('Y-m-d');

------------------------------------------------------------------------
[2014-01-14 09:45:12] ieskok at ramuno dot lt

Confirmed in 5.5.7 & 5.5.8 on Ubuntu 12.04 x64

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


The remainder of the comments for this report are too long. To view
the rest of the comments, please view the bug report online at

    https://bugs.php.net/bug.php?id=63863


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Edit this bug report at https://bugs.php.net/bug.php?id=63863&edit=1


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