From: Operating system: windows PHP version: 5.3.8 Package: *Data Exchange functions Bug Type: Bug Bug description:strtotime("-1 month");
Description: ------------ I often use strtotime, I won't change my program anywhere. +1 month -1 month maybe as expected Test script: --------------- date("Y-m-d H:i:s", strtotime("-1 month", strtotime("2011-05-31 00:00:00"))); //2011-05-01 as expected //2011-04-30 I Like date("Y-m-d H:i:s", strtotime("+1 month", strtotime("2011-05-31 00:00:00"))); //2011-07-01 as expected //2011-06-30 I Like date("Y-m-d H:i:s", strtotime("-1 month", strtotime("2011-03-31 00:00:00"))); //2011-03-03 as expected //2011-02-28 I Like -- Edit bug report at https://bugs.php.net/bug.php?id=55792&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=55792&r=trysnapshot54 Try a snapshot (PHP 5.3): https://bugs.php.net/fix.php?id=55792&r=trysnapshot53 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=55792&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=55792&r=fixed Fixed in SVN and need be documented: https://bugs.php.net/fix.php?id=55792&r=needdocs Fixed in release: https://bugs.php.net/fix.php?id=55792&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=55792&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=55792&r=needscript Try newer version: https://bugs.php.net/fix.php?id=55792&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=55792&r=support Expected behavior: https://bugs.php.net/fix.php?id=55792&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=55792&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=55792&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=55792&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=55792&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=55792&r=dst IIS Stability: https://bugs.php.net/fix.php?id=55792&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=55792&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=55792&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=55792&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=55792&r=mysqlcfg