From: krumb at valentins dot de Operating system: Suse Linux PHP version: 5.2.6 PHP Bug Type: Math related Bug description: wrong calculating
Description: ------------ Some strange calculating mistake It seems to happen in the second line at 7/100*100, echos zero, had to be zero but internal it seems thats not zero Reproduce code: --------------- <? $share=100; $discount=7/100*$share; $brutto=5.8824/100*(100+19); $brutto=round($brutto,2); echo $brutto."-".$discount."="; $new=$brutto-$discount; echo $new; ?> Expected result: ---------------- 7-7=0 Actual result: -------------- 7-7=-8.881784197E-16 -- Edit bug report at http://bugs.php.net/?id=46566&edit=1 -- Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=46566&r=trysnapshot52 Try a CVS snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=46566&r=trysnapshot53 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=46566&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=46566&r=fixedcvs Fixed in CVS and need be documented: http://bugs.php.net/fix.php?id=46566&r=needdocs Fixed in release: http://bugs.php.net/fix.php?id=46566&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=46566&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=46566&r=needscript Try newer version: http://bugs.php.net/fix.php?id=46566&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=46566&r=support Expected behavior: http://bugs.php.net/fix.php?id=46566&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=46566&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=46566&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=46566&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=46566&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=46566&r=dst IIS Stability: http://bugs.php.net/fix.php?id=46566&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=46566&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=46566&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=46566&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=46566&r=mysqlcfg
