Bug #52454 [NEW]: Relative dates and getTimestamp increments by one day

From: Operating system: Windows 7 Professional PHP version: 5.3.3 Package: Date/time related Bug Type: Bug Bug description:Relative dates and getTimestamp increments by one day Description: ------------ If you create a DateTime object using a relative date string of "this week +6 days", when calling getTimestamp on the datetime object, the date is mysteriously increments by one day. However, if you seperately modify the datetime using 'this week', then '+6 days', it works correctly. Where is the additional day comeing from, and why is it only applied when calling format('U') DOESNT increment the datetime by 1 day. Wierd! Here is a work around: $endOfWeek = new DateTime(); $endOfWeek->modify('this week'); $endOfWeek->modify('+6 days'); echo $endOfWeek->format('Y-m-d H:m:s')."\n"; echo $endOfWeek->format('U')."\n"; /* Thar she blows! */ echo $endOfWeek->getTimestamp()."\n"; echo $endOfWeek->format('Y-m-d H:m:s')."\n"; Test script: --------------- $endOfWeek = new DateTime(); $endOfWeek->modify('this week +6 days'); echo $endOfWeek->format('Y-m-d H:m:s')."\n"; echo $endOfWeek->format('U')."\n"; /* Thar she blows! */ echo $endOfWeek->getTimestamp()."\n"; echo $endOfWeek->format('Y-m-d H:m:s')."\n"; Expected result: ---------------- DateTime should stay the same after a call to getTimestamp (surely getTimestamp should be safe from side effects) -- Edit bug report at http://bugs.php.net/bug.php?id=52454&edit=1 -- Try a snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=52454&r=trysnapshot52 Try a snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=52454&r=trysnapshot53 Try a snapshot (trunk): http://bugs.php.net/fix.php?id=52454&r=trysnapshottrunk Fixed in SVN: http://bugs.php.net/fix.php?id=52454&r=fixed Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=52454&r=needdocs Fixed in release: http://bugs.php.net/fix.php?id=52454&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=52454&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=52454&r=needscript Try newer version: http://bugs.php.net/fix.php?id=52454&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=52454&r=support Expected behavior: http://bugs.php.net/fix.php?id=52454&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=52454&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=52454&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=52454&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=52454&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=52454&r=dst IIS Stability: http://bugs.php.net/fix.php?id=52454&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=52454&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=52454&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=52454&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=52454&r=mysqlcfg