Doc #70702 [NEW]: Documentation missing to explain unexpected optimisation behaviour

From: ss23 at ss23 dot geek dot nz Operating system: PHP version: Irrelevant Package: Documentation problem Bug Type: Documentation Problem Bug description:Documentation missing to explain unexpected optimisation behaviour Description: ------------ As per bugs #70698 #54162 #67829 the behaviour is incredibly unexpected. I'm not aware of where this strange behaviour is documented, and given the volume of bug reports, it seems like it should be documented, preferably with a bright red WARNING or similar. -- Edit bug report at https://bugs.php.net/bug.php?id=70702&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=70702&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=70702&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=70702&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=70702&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=70702&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=70702&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=70702&r=needscript Try newer version: https://bugs.php.net/fix.php?id=70702&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=70702&r=support Expected behavior: https://bugs.php.net/fix.php?id=70702&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=70702&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=70702&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=70702&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=70702&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=70702&r=dst IIS Stability: https://bugs.php.net/fix.php?id=70702&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=70702&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=70702&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=70702&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=70702&r=mysqlcfg