Online PHP editor | output for MS73Y

<?php class A { private static $a = 1; private static function a() {} public static function test() { var_dump(self::$a); var_dump(B::$a); var_dump(static::$a); } } class B extends A { protected static $a = 2; protected static function a() {} } class C extends B { public static $a = 3; public static function a() {} } C::test(); C::a();