Description:
------------
Bug is still open in release versions. When it will be fixed?

http://bugs.php.net/bug.php?id=28442


quote------------


[19 May 2004 9:27am UTC] kell_pt at users dot sf dot net
It isn't possible to override static variable values in classes, seeing
as the same variable is shared across the whole hierarchy of classes.
Each child class should be able to have their own value for a static
variable.

A good example is trying to have a counter of the number of instances
per class.

ClassB::$count will always be the same as ClassA::$count.

It is possible that you don't consider this a bug, but it is quite
against the OOP paradigm, and worth a note. Basically, when loading a
subclass, the default values for the variables should be loaded, and a
new variable (memory space) created, instead of keeping a reference to
the superclass' static variable.

This is somehow related to Bug #16245 (which regards static variables
declared within functions). But where the behaviour in such a situation
is a bit unspecified, in this case it's quite against OO programming.

Reproduce code:
---------------
quote------------


[19 May 2004 9:27am UTC] kell_pt at users dot sf dot net

class ClassA
{
   static $count;
   static $somevar;

   static __construct()
   {
       self::$count++; // this won't work as expected
   }
}

class ClassB extends ClassA
{
}

// another simpler example
ClassA::$somevar = 'A';
ClassB::$somevar = 'B';
// ClassA::$somevar is now 'B' instead of 'A';
ClassA::$somevar = 'A';
// ClassB::$somevar is now 'A' instead of 'B';