Bug #68286 [NEW]: DateTime::sub crossing DST border starts to add
From: sam at strictlyphp dot com
Operating system: Irrelevant
PHP version: Irrelevant
Package: *General Issues
Bug Type: Bug
Bug description:DateTime::sub crossing DST border starts to add
Description:
------------
Starting with a date in standard time and subtracting over the DST
"border", suddenly adds time.
Line 5 in the actual result below seems to be wrong.
Happens in all PHP versions from 5.4.24 & 5.5.8 onwards.
Test script:
---------------
$tz = new DateTimeZone('Europe/Brussels');
$date = new DateTime('2014-10-26T03:00:00', $tz);
$interval = new DateInterval('PT30M');
for ($i = 0; $i < 5; $i++) {
echo $date->sub($interval)->format('c e T') . PHP_EOL;
}
Expected result:
----------------
2014-10-26T02:30:00+01:00 Europe/Brussels CET
2014-10-26T02:00:00+01:00 Europe/Brussels CET
2014-10-26T02:30:00+02:00 Europe/Brussels CEST
2014-10-26T02:00:00+02:00 Europe/Brussels CEST
2014-10-26T01:30:00+02:00 Europe/Brussels CEST
Actual result:
--------------
2014-10-26T02:30:00+01:00 Europe/Brussels CET
2014-10-26T02:00:00+01:00 Europe/Brussels CET
2014-10-26T02:30:00+02:00 Europe/Brussels CEST
2014-10-26T02:00:00+02:00 Europe/Brussels CEST
2014-10-26T02:30:00+02:00 Europe/Brussels CEST
--
Edit bug report at https://bugs.php.net/bug.php?id=68286&edit=1
--
Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=68286&r=trysnapshot54
Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=68286&r=trysnapshot55
Try a snapshot (trunk): https://bugs.php.net/fix.php?id=68286&r=trysnapshottrunk
Fixed in SVN: https://bugs.php.net/fix.php?id=68286&r=fixed
Fixed in release: https://bugs.php.net/fix.php?id=68286&r=alreadyfixed
Need backtrace: https://bugs.php.net/fix.php?id=68286&r=needtrace
Need Reproduce Script: https://bugs.php.net/fix.php?id=68286&r=needscript
Try newer version: https://bugs.php.net/fix.php?id=68286&r=oldversion
Not developer issue: https://bugs.php.net/fix.php?id=68286&r=support
Expected behavior: https://bugs.php.net/fix.php?id=68286&r=notwrong
Not enough info: https://bugs.php.net/fix.php?id=68286&r=notenoughinfo
Submitted twice: https://bugs.php.net/fix.php?id=68286&r=submittedtwice
register_globals: https://bugs.php.net/fix.php?id=68286&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=68286&r=php4
Daylight Savings: https://bugs.php.net/fix.php?id=68286&r=dst
IIS Stability: https://bugs.php.net/fix.php?id=68286&r=isapi
Install GNU Sed: https://bugs.php.net/fix.php?id=68286&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=68286&r=float
No Zend Extensions: https://bugs.php.net/fix.php?id=68286&r=nozend
MySQL Configuration Error: https://bugs.php.net/fix.php?id=68286&r=mysqlcfg
Thread (5 messages)
- sam at strictlyphp dot com