Bug #51838 [NEW]: output problem

From: Operating system: Windows 2003 PHP version: 5.2SVN-2010-05-17 (snap) Package: Output Control Bug Type: Bug Bug description:output problem Description: ------------ In PHP 5.2.8: echo $x=808.163-961.205+153.042 ; the result should be 0 but the result was: -2.8421709430404E-14 !!!!!!!!!!!!! Test script: --------------- In PHP 5.2.8: echo $x=808.163-961.205+153.042 ; the result should be 0 but the result was: -2.8421709430404E-14 !!!!!!!!!!!!! -- Edit bug report at http://bugs.php.net/bug.php?id=51838&edit=1 -- Try a snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=51838&r=trysnapshot52 Try a snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=51838&r=trysnapshot53 Try a snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=51838&r=trysnapshot60 Fixed in SVN: http://bugs.php.net/fix.php?id=51838&r=fixed Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=51838&r=needdocs Fixed in release: http://bugs.php.net/fix.php?id=51838&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=51838&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=51838&r=needscript Try newer version: http://bugs.php.net/fix.php?id=51838&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=51838&r=support Expected behavior: http://bugs.php.net/fix.php?id=51838&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=51838&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=51838&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=51838&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=51838&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=51838&r=dst IIS Stability: http://bugs.php.net/fix.php?id=51838&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=51838&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=51838&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=51838&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=51838&r=mysqlcfg