#30235 [NEW]: Inheritance of private static variables fails (related to self:: )

From: kell_pt at users dot sf dot net Operating system: Any PHP version: 5CVS-2004-09-25 (dev) PHP Bug Type: Zend Engine 2 problem Bug description: Inheritance of private static variables fails (related to self:: ) Description: ------------ The issue is pretty simple I've explained this problem before, I'm unsure why it hasn't been addressed - it's a design flaw and violates basic principles of what you'd expect from an OOP language. Consider a static function in a base class, and a class that inherits from the above. In such a static function, self:: always refers to the class where the code was declared. That is wrong, it should be relative to the class the code was called from. It makes it impossible to have seperate variables in sub-classes sharing the same code. It is easier watching the example, it speaks for itself. When "test()" runs, on the second call, it should be running within context of ClassB, not ClassA. This is related to bug #28442, which was apparently ignored. Can someone at least explain what is the reasoning behind it working like that? I don't want to sound rude, but I know how it works, the distinctions between public and private, please don't patronize me (again). :) Reproduce code: --------------- class ClassA { private static $base = "Variable from ClassA"; static function test() { print( self::$base . "\n" ); } } class ClassB extends ClassA { private static $base = "Variable from ClassB"; } ClassA::test(); ClassB::test(); Expected result: ---------------- Variable from ClassA Variable from ClassB Actual result: -------------- Variable from ClassA Variable from ClassA -- Edit bug report at http://bugs.php.net/?id=30235&edit=1 -- Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=30235&r=trysnapshot4 Try a CVS snapshot (php5.0): http://bugs.php.net/fix.php?id=30235&r=trysnapshot50 Try a CVS snapshot (php5.1): http://bugs.php.net/fix.php?id=30235&r=trysnapshot51 Fixed in CVS: http://bugs.php.net/fix.php?id=30235&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=30235&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=30235&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=30235&r=needscript Try newer version: http://bugs.php.net/fix.php?id=30235&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=30235&r=support Expected behavior: http://bugs.php.net/fix.php?id=30235&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=30235&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=30235&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=30235&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=30235&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=30235&r=dst IIS Stability: http://bugs.php.net/fix.php?id=30235&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=30235&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=30235&r=float MySQL Configuration Error: http://bugs.php.net/fix.php?id=30235&r=mysqlcfg