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Bug 454301 - Crash when using DateTimeZone object returned by Date::getTimezone
Summary: Crash when using DateTimeZone object returned by Date::getTimezone
Alias: None
Product: Fedora
Classification: Fedora
Component: php
Version: 8
Hardware: i686
OS: Linux
Target Milestone: ---
Assignee: Joe Orton
QA Contact: Fedora Extras Quality Assurance
Depends On:
TreeView+ depends on / blocked
Reported: 2008-07-07 15:51 UTC by Dennis P. Nikolaenko
Modified: 2009-01-09 07:51 UTC (History)
2 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2009-01-09 07:51:04 UTC

Attachments (Terms of Use)

System ID Priority Status Summary Last Updated
PHP Bug Tracker 45038 None None None Never

Description Dennis P. Nikolaenko 2008-07-07 15:51:24 UTC
Crash when using DateTimeZone object, previously returned by

This worked fine in PHP 5.2.5
Probably this is related to how DateTimeZone object is returned:

This code returns different results in 5.2.5 and 5.2.6

$old_tz = $d->getTimezone();
$d->setTimezone(new DateTimeZone('UTC'));
echo $old_tz->getName();

5.2.6 returns 'UTC', while 5.2.5 returns 'Asia/Novosibirsk' (my current
timezone). Having in mind how objects in PHP5 are returned, I can accept
this, but this must be documented properly and shouldn't cause crash.

Reproduce code:
$d = new DateTime();
$old_tz = $d->getTimezone();
$d->setTimezone(new DateTimeZone('UTC'));
// setDate() and setTime() may go here - just for this example to make
some sense
echo "Success";

Expected result:

Actual result:
PHP interpreter crashes

Comment 1 Joe Orton 2008-07-08 09:05:31 UTC
Thanks for the report.  I can see the bug, the reference to the timezone info is
not duplicated/refcounted internally, so the $old_tz contains a stale pointer
after the second setTimezone call and all bets are off from there on.

Comment 2 Joe Orton 2008-07-08 14:51:25 UTC
Patch submitted upstream

Comment 3 Joe Orton 2008-07-08 22:08:51 UTC
OK, this got merged to 5.2.x so will be there when 5.2.7 is out and makes it
through to an update.  

Can you work around it in the meantime?  I can do a build with the patch applied
if that helps, but it won't be worth pushing an update just for this.

Comment 4 Bug Zapper 2008-11-26 10:58:35 UTC
This message is a reminder that Fedora 8 is nearing its end of life.
Approximately 30 (thirty) days from now Fedora will stop maintaining
and issuing updates for Fedora 8.  It is Fedora's policy to close all
bug reports from releases that are no longer maintained.  At that time
this bug will be closed as WONTFIX if it remains open with a Fedora 
'version' of '8'.

Package Maintainer: If you wish for this bug to remain open because you
plan to fix it in a currently maintained version, simply change the 'version' 
to a later Fedora version prior to Fedora 8's end of life.

Bug Reporter: Thank you for reporting this issue and we are sorry that 
we may not be able to fix it before Fedora 8 is end of life.  If you 
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Comment 5 Bug Zapper 2009-01-09 07:51:04 UTC
Fedora 8 changed to end-of-life (EOL) status on 2009-01-07. Fedora 8 is 
no longer maintained, which means that it will not receive any further 
security or bug fix updates. As a result we are closing this bug.

If you can reproduce this bug against a currently maintained version of 
Fedora please feel free to reopen this bug against that version.

Thank you for reporting this bug and we are sorry it could not be fixed.

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