Description:
------------
When using a static variable defined inside a parent class's 
static method block, different outcomes can occur depending on  
the scope name used when calling.

The effect is that a non-overridden method in the child class 
is allocated a completely separate static variable... not how 
it works in C or C++, which I know PHP is not.

I encountered this problem implementing a singleton pattern in 
a parent class. I apologize for the reproduction code, but it 
does illustrate my perceived problem.

The closest bugs I found, relate to static class attributes, 
not regular static variables.

Reproduce code:
---------------
<?php

class TheParent {
        public static function staticMethod()
        {
                static $theStaticValue = true;

                if ($theStaticValue == true) {
                        $theStaticValue = false;
                        return true;
                } else return $theStaticValue; // false
       }
}

class TheChild extends TheParent {}

$a1 = TheParent::staticMethod();
$a2 = TheParent::staticMethod();
$b1 = TheChild::staticMethod();
$b2 = TheChild::staticMethod();

echo '$a1: ', $a1, "\n"; // true
echo '$a2: ', $a2, "\n"; // false
echo '$b1: ', $b1, "\n"; // true (I believe this should be false)
echo '$b2: ', $b2, "\n"; // false
?>

Expected result:
----------------
My intuition tells me that the parent's static variable should 
be used regardless of the scope name used... unless it's 
actually redefined in the child class.

In this example, I expect the output to be:

$a1: 1
$a2: 
$b1: 
$b2: 

Is local static method data not shared?

Actual result:
--------------
$a1: 1
$a2: 
$b1: 1
$b2: