Bug #80274 [NEW]: Simple addition and subtraction, but the result is messy.

From: 2007 dot liufeng dot love at gmail dot com Operating system: CentOS Linux release 7.8.2003 (C PHP version: 7.3.23 Package: Math related Bug Type: Bug Bug description:Simple addition and subtraction, but the result is messy. Description: ------------ Simple addition and subtraction, but the result is messy. Test script: --------------- var_dump(1011.55 + 228.83 - 1240.38); Expected result: ---------------- 0 Actual result: -------------- float(-2.2737367544323E-13) -- Edit bug report at https://bugs.php.net/bug.php?id=80274&edit=1 -- Fix committed: https://bugs.php.net/fix.php?id=80274&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=80274&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=80274&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=80274&r=needscript Try newer version: https://bugs.php.net/fix.php?id=80274&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=80274&r=support Expected behavior: https://bugs.php.net/fix.php?id=80274&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=80274&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=80274&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=80274&r=globals PHP version support discontinued: https://bugs.php.net/fix.php?id=80274&r=phptooold Daylight Savings: https://bugs.php.net/fix.php?id=80274&r=dst IIS Stability: https://bugs.php.net/fix.php?id=80274&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=80274&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=80274&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=80274&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=80274&r=mysqlcfg