Bug #75606 [NEW]: strtotime("first day this month") vs strtotime("first day of this month")

From: rafal dot janiczek at gmail dot com Operating system: Linux PHP version: 7.1.12 Package: Date/time related Bug Type: Bug Bug description:strtotime("first day this month") vs strtotime("first day of this month") Description: ------------ strtotime("first day this month") gives a date for next month. Test script: --------------- <?php $d = "first day this month"; echo "'$d': ".date("Y-m-d", strtotime($d)).PHP_EOL; $d = "first day of this month"; echo "'$d': ".date("Y-m-d", strtotime($d)).PHP_EOL; echo "Today: ".date("Y-m-d").PHP_EOL; Expected result: ---------------- 'first day this month': 2017-11-01 'first day of this month': 2017-11-01 Today: 2017-11-30 Actual result: -------------- 'first day this month': 2017-12-01 'first day of this month': 2017-11-01 Today: 2017-11-30 -- Edit bug report at https://bugs.php.net/bug.php?id=75606&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=75606&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=75606&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=75606&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=75606&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=75606&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=75606&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=75606&r=needscript Try newer version: https://bugs.php.net/fix.php?id=75606&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=75606&r=support Expected behavior: https://bugs.php.net/fix.php?id=75606&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=75606&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=75606&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=75606&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=75606&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=75606&r=dst IIS Stability: https://bugs.php.net/fix.php?id=75606&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=75606&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=75606&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=75606&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=75606&r=mysqlcfg