Bug #78015 [NEW]: Fatal error when Opcache enabled on PHP 7.3.5 under Linux

From: andrejs dot verza at gmail dot com Operating system: Ubuntu 18.04 PHP version: 7.3.5 Package: opcache Bug Type: Bug Bug description:Fatal error when Opcache enabled on PHP 7.3.5 under Linux Description: ------------ PHP 7.3.5 throws a "Fatal error: Uncaught Error: Unsupported operand types ..." when opcache is enabled in php.ini on Ubuntu Linux 16.04, 18.04, 19.04. Notes: - The error is only thrown on a first http request after server started or restarted (the following requests work as expected). - The error is thrown on Apache web server as well as on a PHP built-in web server. - The error is not present on Windows. Workaround: Set opcache.optimization_level=0x7FFFBFDF in php.ini (instead of the default value 0x7FFFBFFF). Test script: --------------- index.php: <?php require_once 'simple.php'; ?> simple.php: <?php $x = 1; function f() { global $x; $a = ['b' => [$x], 'c' => [$x]]; $d = $a['b'] + $a['c']; } Expected result: ---------------- Empty output, no PHP errors. Actual result: -------------- Fatal error: Uncaught Error: Unsupported operand types in /var/www/html/index.php:1 Stack trace: #0 {main} thrown in /var/www/html/index.php on line 1 -- Edit bug report at https://bugs.php.net/bug.php?id=78015&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=78015&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=78015&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=78015&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=78015&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=78015&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=78015&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=78015&r=needscript Try newer version: https://bugs.php.net/fix.php?id=78015&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=78015&r=support Expected behavior: https://bugs.php.net/fix.php?id=78015&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=78015&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=78015&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=78015&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=78015&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=78015&r=dst IIS Stability: https://bugs.php.net/fix.php?id=78015&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=78015&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=78015&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=78015&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=78015&r=mysqlcfg