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Bug #53634 unknown property when writing to DateInterval::$days
Submitted: 2010-12-30 22:15 UTC Modified: 2013-02-17 10:45 UTC
From: danielc at analysisandsolutions dot com Assigned: stas (profile)
Status: Closed Package: Date/time related
PHP Version: 5.3SVN-2010-12-30 (SVN) OS: linux
Private report: No CVE-ID: None
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 [2010-12-30 22:15 UTC] danielc at analysisandsolutions dot com 
Description:
------------
One can not set the DateInterval::$days property.  It is readable.  All other properties of DateInterval shown in var_dump() are writeable.

While similar to Bug #52738, this involves an actual property of the DateInterval class.


Test script:
---------------
$i = new DateInterval('P1D');
$i->s = 8;
echo "S: $i->s\n";
echo "DAYS: $i->days\n";
$i->days = 6;
echo "DAYS: $i->days\n";


Expected result:
----------------
S: 8
DAYS: -99999
DAYS: 6


Actual result:
--------------
S: 8
DAYS: -99999
PHP Fatal error:  main(): Unknown property (days) in /home/danielc/test.php on line 7

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AllCommentsChangesGit/SVN commitsRelated reports
 [2011-01-24 03:49 UTC] stas@php.net
-Status: Open +Status: Closed -Assigned To: +Assigned To: stas
 [2011-01-24 03:49 UTC] stas@php.net 
This bug has been fixed in SVN.

Snapshots of the sources are packaged every three hours; this change
will be in the next snapshot. You can grab the snapshot at
http://snaps.php.net/.
 
Thank you for the report, and for helping us make PHP better.
 [2011-01-24 18:39 UTC] danielc at analysisandsolutions dot com
-Status: Closed +Status: Assigned
 [2011-01-24 18:39 UTC] danielc at analysisandsolutions dot com 
While the recent commit removes the fatal error, the property can not be written to.  Here is the output of the initial test script (above) as of svn revision 307713:

S: 8
DAYS: -99999
DAYS: -99999
 [2011-01-30 11:57 UTC] stas@php.net 
Hmm... Actually you're not supposed to be writing to days property, it should be read only. I'll fix it.
 [2011-01-30 13:59 UTC] danielc at analysisandsolutions dot com 
Why should days be read only?  All other properties are writable.  Days needs to be writable too.  Writing to various properties is necessary when overloading the date classes (to compensate for bugs, etc).
 [2013-02-17 10:45 UTC] stas@php.net 
The fix for this bug has been committed.

Snapshots of the sources are packaged every three hours; this change
will be in the next snapshot. You can grab the snapshot at
http://snaps.php.net/.

 For Windows:

http://windows.php.net/snapshots/
 
Thank you for the report, and for helping us make PHP better.

$days is not writable by design of DateInterval since it's a derived property. So 
not being able to write it is not a bug. If additional functionality is needed, 
please create FR or RFC describing how it should work.
 [2013-02-17 10:45 UTC] stas@php.net
-Status: Assigned +Status: Closed
 
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