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Bug #65672 Broken classes inherited from DatePeriod
Submitted: 2013-09-14 01:32 UTC Modified: 2019-09-22 14:34 UTC
Votes:21
Avg. Score:4.2 ± 1.3
Reproduced:16 of 18 (88.9%)
Same Version:6 (37.5%)
Same OS:11 (68.8%)
From: hosiplan at gmail dot com Assigned: duncan3dc (profile)
Status: Closed Package: Date/time related
PHP Version: 7.1 OS: Linux
Private report: No CVE-ID: None
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 [2013-09-14 01:32 UTC] hosiplan at gmail dot com 
Description:
------------
---
From manual page: http://www.php.net/class.dateperiod
---

Classes inherited from DatePeriod class cannot use their declared properties

Test script:
---------------
<?php

class Period extends \DatePeriod
{
	public $test;
}

$p = new Period(new \DateTime('now'), new \DateInterval('P1Y'), new \DateTime('tomorrow'));
$p->test = FALSE;



Expected result:
----------------
no error

Actual result:
--------------
Fatal error: main(): Writing to DatePeriod properties is unsupported in 
period.phpt on line 9

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 [2014-06-29 14:44 UTC] info at vdespa dot de 
I can confirm this bug. It seems to introduce a backward incompatibility and it seems not to be properly documented in the changelog.

Looks like trying to fix bug #53437 (Crash when using unserialized DatePeriod instance) generated this issue. (https://bugs.php.net/bug.php?id=53437)
 [2017-01-16 06:58 UTC] heiglandreas@php.net
-PHP Version: 5.5.3 +PHP Version: 7.1
 [2017-01-16 06:58 UTC] heiglandreas@php.net 
Looks like this never actually worked[1], so it can't have been introduced by a bugfix…

[1] https://3v4l.org/0oIl7
 [2018-02-17 21:47 UTC] php at duncanc dot co dot uk 
It looks like this was introduced in 5.3.27 / 5.4.17 when fixing bug 53437 (https://github.com/php/php-src/commit/0ee71557ffd285552659b6aa37ea236e3bad493f)
 [2018-10-02 10:51 UTC] cmb@php.net
-Status: Open +Status: Verified
 [2018-10-02 10:51 UTC] cmb@php.net 
I can confirm that this BC break has been introduced with commit
0ee7155[1].

[1] <http://git.php.net/?p=php-src.git;a=commit;h=0ee71557ffd285552659b6aa37ea236e3bad493f>
 [2019-09-22 14:34 UTC] duncan3dc@php.net
-Status: Verified +Status: Closed -Assigned To: +Assigned To: duncan3dc
 [2019-09-22 14:34 UTC] duncan3dc@php.net 
Thank you for your bug report. This issue has already been fixed
in the latest released version of PHP, which you can download at
http://www.php.net/downloads.php

Fix available in 7.2.20 and 7.3.7
 
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