Bug #52142 [NEW]: using diff change the datetime object

From: Operating system: slackware PHP version: 5.3.2 Package: Date/time related Bug Type: Bug Bug description:using diff change the datetime object Description: ------------ A DateTime object with timezone_type=1 is always set to timezone=+00:00 after the use of diff Test script: --------------- date_default_timezone_set( "Europe/Rome" ); $da = new DateTime('2010-06-22T00:00:00+02:00'); $a = new DateTime('2010/06/23'); print_r($da); $da->diff($a); // $da has been changed print_r($da); Expected result: ---------------- DateTime Object ( [date] => 2010-06-22 00:00:00 [timezone_type] => 1 [timezone] => +02:00 ) DateTime Object ( [date] => 2010-06-21 22:00:00 [timezone_type] => 1 [timezone] => +02:00 ) Actual result: -------------- DateTime Object ( [date] => 2010-06-22 00:00:00 [timezone_type] => 1 [timezone] => +02:00 ) DateTime Object ( [date] => 2010-06-21 22:00:00 [timezone_type] => 1 [timezone] => +00:00 ) -- Edit bug report at http://bugs.php.net/bug.php?id=52142&edit=1 -- Try a snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=52142&r=trysnapshot52 Try a snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=52142&r=trysnapshot53 Try a snapshot (trunk): http://bugs.php.net/fix.php?id=52142&r=trysnapshottrunk Fixed in SVN: http://bugs.php.net/fix.php?id=52142&r=fixed Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=52142&r=needdocs Fixed in release: http://bugs.php.net/fix.php?id=52142&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=52142&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=52142&r=needscript Try newer version: http://bugs.php.net/fix.php?id=52142&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=52142&r=support Expected behavior: http://bugs.php.net/fix.php?id=52142&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=52142&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=52142&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=52142&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=52142&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=52142&r=dst IIS Stability: http://bugs.php.net/fix.php?id=52142&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=52142&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=52142&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=52142&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=52142&r=mysqlcfg