Bug #54597 [NEW]: incorrect years for DateTime objects created with 4-digit years

From: Operating system: MacOS X PHP version: 5.3.6 Package: Date/time related Bug Type: Bug Bug description:incorrect years for DateTime objects created with 4-digit years Description: ------------ --- From manual page: http://www.php.net/datetime.construct --- I'm actually using PHP 5.3.2. Apologies for not testing against 5.3.6. DateTime objects created with any of the following strings result in incorrect years: 'January 0099' -> 1999 'January 1, 0099' -> 1999 '0099-01' -> 1999 However, all of the following work correctly: '0099' -> 0099 '0099-01-01' -> 0099 '01-01-0099' -> 0099 I imagine this is due to DateTime parsing 0099 into 99 in the bad examples (and thus triggering the 1900 addition). This bug currently blocks the following MediaWiki bug: https://bugzilla.wikimedia.org/show_bug.cgi?id=28655 Test script: --------------- $tz = new DateTimeZone("Europe/Amsterdam"); $dateObject = new DateTime( 'January 0099', $tz ); echo $dateObject->format( 'Y' ); $dateObject = new DateTime( 'January 1, 0099', $tz ); echo $dateObject->format( 'Y' ); $dateObject = new DateTime( '0099-01', $tz ); echo $dateObject->format( 'Y' ); Expected result: ---------------- 0099 0099 0099 Actual result: -------------- 1999 1999 1999 -- Edit bug report at http://bugs.php.net/bug.php?id=54597&edit=1 -- Try a snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=54597&r=trysnapshot52 Try a snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=54597&r=trysnapshot53 Try a snapshot (trunk): http://bugs.php.net/fix.php?id=54597&r=trysnapshottrunk Fixed in SVN: http://bugs.php.net/fix.php?id=54597&r=fixed Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=54597&r=needdocs Fixed in release: http://bugs.php.net/fix.php?id=54597&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=54597&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=54597&r=needscript Try newer version: http://bugs.php.net/fix.php?id=54597&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=54597&r=support Expected behavior: http://bugs.php.net/fix.php?id=54597&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=54597&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=54597&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=54597&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=54597&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=54597&r=dst IIS Stability: http://bugs.php.net/fix.php?id=54597&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=54597&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=54597&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=54597&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=54597&r=mysqlcfg