Bug #60980 [NEW]: date with strtotime

From: Operating system: debian PHP version: 5.3.10 Package: Date/time related Bug Type: Bug Bug description:date with strtotime Description: ------------ I used this function as below but i have problem in February month if 'user_invoice_date' equal 2012-01-30 or 2012-01-31 the 'new_invoice_date' equal 2012-03-01 $new_invoice_date=date("Y-m-01 H:i:s",strtotime($user_invoice_date."+1 month")); Test script: --------------- normal $user_invoice_date="2011-12-31"; $new_invoice_date=date("Y-m-01 H:i:s",strtotime($user_invoice_date."+1 month")); //////////////// Error $user_invoice_date="2012-01-31"; $new_invoice_date=date("Y-m-01 H:i:s",strtotime($user_invoice_date."+1 month")); echo $new_invoice_date; Expected result: ---------------- $user_invoice_date="2012-01-31"; $new_invoice_date=date("Y-m-01 H:i:s",strtotime($user_invoice_date."+1 month")); $new_invoice_date=2012-02-01 2012-02-01 Actual result: -------------- $new_invoice_date=2012-03-01 2012-03-01 -- Edit bug report at https://bugs.php.net/bug.php?id=60980&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=60980&r=trysnapshot54 Try a snapshot (PHP 5.3): https://bugs.php.net/fix.php?id=60980&r=trysnapshot53 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=60980&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=60980&r=fixed Fixed in SVN and need be documented: https://bugs.php.net/fix.php?id=60980&r=needdocs Fixed in release: https://bugs.php.net/fix.php?id=60980&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=60980&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=60980&r=needscript Try newer version: https://bugs.php.net/fix.php?id=60980&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=60980&r=support Expected behavior: https://bugs.php.net/fix.php?id=60980&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=60980&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=60980&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=60980&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=60980&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=60980&r=dst IIS Stability: https://bugs.php.net/fix.php?id=60980&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=60980&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=60980&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=60980&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=60980&r=mysqlcfg