Bug #76515 [NEW]: if you multiply 1.9 by 3 and if you ta subtract the same the result is not zero

From: manuel dot cs dot hr at gmail dot com Operating system: Linux PHP version: 7.0Git-2018-06-22 (Git) Package: Math related Bug Type: Bug Bug description:if you multiply 1.9 by 3 and if you ta subtract the same the result is not zero Description: ------------ if you multiply 1.9 by 3 the result is 5.7 and if you ta subtract the result 5.7 the answer is not zero Test script: --------------- <?php $qty = 3; $val1 = 1.9; $discount = 5.7; $items_ = $val1 * $qty ; $result = $items_ - $discount; var_dump($result); ?> Expected result: ---------------- $result = 0; -- Edit bug report at https://bugs.php.net/bug.php?id=76515&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=76515&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=76515&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=76515&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=76515&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=76515&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=76515&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=76515&r=needscript Try newer version: https://bugs.php.net/fix.php?id=76515&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=76515&r=support Expected behavior: https://bugs.php.net/fix.php?id=76515&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=76515&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=76515&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=76515&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=76515&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=76515&r=dst IIS Stability: https://bugs.php.net/fix.php?id=76515&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=76515&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=76515&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=76515&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=76515&r=mysqlcfg