From: mattsch at gmail dot com Operating system: Gentoo Linux 2007.0 PHP version: 5.2.3 PHP Bug Type: Date/time related Bug description: Format returns incorrect number of digits for negative years -0001 to -0999
Description: ------------ Format returns incorrect number of digits for negative years -0001 to -0999. See ISO 8601:2004 and http://en.wikipedia.org/wiki/Year_zero: The "basic" format for year 0 is the four-digit form 0000, which equals the historical year 1 BC. Several "expanded" formats are possible: -0000 and +0000, as well as five- and six-digit versions. Earlier years are also negative four-, five- or six-digit years, which have an absolute value one less than the equivalent BC year, hence -0001 = 2 BC. Reproduce code: --------------- <? $date = new DateTime('2007-06-28'); $date->modify('-3006 years'); echo $date->format(DATE_ISO8601); ?> Outputs: -999-06-17T00:00:00-0600 Expected: -0999-06-17T00:00:00-0600 <? $date = new DateTime('2007-06-28'); $date->modify('-2008 years'); echo $date->format(DATE_ISO8601); ?> Outputs: -001-06-17T00:00:00-0600 Expected: -0001-06-17T00:00:00-0600 -- Edit bug report at http://bugs.php.net/?id=41844&edit=1 -- Try a CVS snapshot (PHP 4.4): http://bugs.php.net/fix.php?id=41844&r=trysnapshot44 Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=41844&r=trysnapshot52 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=41844&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=41844&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=41844&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=41844&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=41844&r=needscript Try newer version: http://bugs.php.net/fix.php?id=41844&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=41844&r=support Expected behavior: http://bugs.php.net/fix.php?id=41844&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=41844&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=41844&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=41844&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=41844&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=41844&r=dst IIS Stability: http://bugs.php.net/fix.php?id=41844&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=41844&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=41844&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=41844&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=41844&r=mysqlcfg
