From: Operating system: ALL PHP version: 5.3.4 Package: Math related Bug Type: Bug Bug description:Rounding twice yields a different result than rounding once
Description: ------------ Rounding a float once should result in the same value as rounding it more than once. Test script: --------------- <?php $float = -1.1368683772162E-13; var_dump(round($float, 2)); var_dump(round(round($float, 2), 2)); Expected result: ---------------- float(0) float(0) Actual result: -------------- float(-0) float(0) -- Edit bug report at http://bugs.php.net/bug.php?id=53549&edit=1 -- Try a snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=53549&r=trysnapshot52 Try a snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=53549&r=trysnapshot53 Try a snapshot (trunk): http://bugs.php.net/fix.php?id=53549&r=trysnapshottrunk Fixed in SVN: http://bugs.php.net/fix.php?id=53549&r=fixed Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=53549&r=needdocs Fixed in release: http://bugs.php.net/fix.php?id=53549&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=53549&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=53549&r=needscript Try newer version: http://bugs.php.net/fix.php?id=53549&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=53549&r=support Expected behavior: http://bugs.php.net/fix.php?id=53549&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=53549&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=53549&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=53549&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=53549&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=53549&r=dst IIS Stability: http://bugs.php.net/fix.php?id=53549&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=53549&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=53549&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=53549&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=53549&r=mysqlcfg
