Description:
------------
I don't know if it is by design, but this is not what I would expect logically...

Reproduce code:
---------------
<?php
	class A {
		static $var = 'foo';
		
		static function getvar (){
			return self::$var;
		}
	}
	
	class B extends A{
		static $var = 'bar';

	}

	echo A::getvar();
	echo B::getvar();
?>

Expected result:
----------------
foobar

Actual result:
--------------
foofoo