Bug #74109 [NEW]: round() PHP_ROUND_HALF_DOWN mode is broken

From: pandenitz at mail dot ru Operating system: Win 7 64 PHP version: 7.0.16 Package: *General Issues Bug Type: Bug Bug description:round() PHP_ROUND_HALF_DOWN mode is broken Description: ------------ PHP_ROUND_HALF_DOWN mode for round() doesn't work, it still increments last allowed decimal digit if next is larger than 4 Test script: --------------- var_dump(100 / 6); var_dump(round(100 / 6, 4, PHP_ROUND_HALF_UP)); var_dump(round(100 / 6, 4, PHP_ROUND_HALF_DOWN)); Expected result: ---------------- float 16.666666666667 float 16.6667 float 16.6666 Actual result: -------------- float 16.666666666667 float 16.6667 float 16.6667 -- Edit bug report at https://bugs.php.net/bug.php?id=74109&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=74109&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=74109&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=74109&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=74109&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=74109&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=74109&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=74109&r=needscript Try newer version: https://bugs.php.net/fix.php?id=74109&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=74109&r=support Expected behavior: https://bugs.php.net/fix.php?id=74109&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=74109&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=74109&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=74109&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=74109&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=74109&r=dst IIS Stability: https://bugs.php.net/fix.php?id=74109&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=74109&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=74109&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=74109&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=74109&r=mysqlcfg