Bug #78531 [NEW]: Crash when using undefined variable as object

From: dmitry Operating system: * PHP version: 7.4Git-2019-09-12 (Git) Package: Scripting Engine problem Bug Type: Bug Bug description:Crash when using undefined variable as object Description: ------------ PHP crashes on attempt to modify property of undefined variable Test script: --------------- <?php @$undef->a += 5; var_dump($undef->a); Expected result: ---------------- int(5) Actual result: -------------- crash -- Edit bug report at https://bugs.php.net/bug.php?id=78531&edit=1 -- Fix committed: https://bugs.php.net/fix.php?id=78531&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=78531&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=78531&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=78531&r=needscript Try newer version: https://bugs.php.net/fix.php?id=78531&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=78531&r=support Expected behavior: https://bugs.php.net/fix.php?id=78531&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=78531&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=78531&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=78531&r=globals PHP version support discontinued: https://bugs.php.net/fix.php?id=78531&r=phptooold Daylight Savings: https://bugs.php.net/fix.php?id=78531&r=dst IIS Stability: https://bugs.php.net/fix.php?id=78531&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=78531&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=78531&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=78531&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=78531&r=mysqlcfg