PHP Decode

--TEST--
Reflection and inheriting static properties
--FILE--
<?php

class base {
    static protected $prop = 2;

    static function show() {
        echo __METHOD__ . '(' . self::$prop . ")\n";
    }

    static function inc() {
        base::$prop++;
        echo __METHOD__ . "()\n";
    }
}

class derived extends base {
    static public $prop = 2;

    static function show() {
        echo __METHOD__ . '(' . self::$prop . ")\n";
    }

    static function inc() {
        derived::$prop++;
        echo __METHOD__ . "()\n";
    }
}

base::show();
derived::show();

base::inc();

base::show();
derived::show();

derived::inc();

base::show();
derived::show();

$r = new ReflectionClass('derived');
echo 'Number of properties: '. count($r->getStaticProperties()) . "\n";

echo "Done\n";
?>
--EXPECT--
base::show(2)
derived::show(2)
base::inc()
base::show(3)
derived::show(2)
derived::inc()
base::show(3)
derived::show(3)
Number of properties: 1
Done