Bug #66338 [NEW]: Optimization binding of class constants is not safely opcacheable

From: Terry at ellisons dot org dot uk Operating system: N/A PHP version: master-Git-2013-12-23 (Git) Package: opcache Bug Type: Bug Bug description:Optimization binding of class constants is not safely opcacheable Description: ------------ The OPcache optimizer cannot safely bind class constants at compile time. This is because the class itself is not bound until execution -- that is when the script is loaded and not when prepared. This can open up all sorts of pitfalls if the application can have variants of the same class. The attached PHPT gives a trite example, but this is entirely allowable under PHP 5.x and therefore trying to do this is not B/C. Test script: --------------- See PHPT at https://gist.github.com/TerryE/8090105 -- Edit bug report at https://bugs.php.net/bug.php?id=66338&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=66338&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=66338&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=66338&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=66338&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=66338&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=66338&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=66338&r=needscript Try newer version: https://bugs.php.net/fix.php?id=66338&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=66338&r=support Expected behavior: https://bugs.php.net/fix.php?id=66338&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=66338&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=66338&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=66338&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=66338&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=66338&r=dst IIS Stability: https://bugs.php.net/fix.php?id=66338&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=66338&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=66338&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=66338&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=66338&r=mysqlcfg