--TEST--
ZE2 Late Static Binding nested calls
--FILE--
<?php
class A {
    public static function test($x=null) {
        if (!is_null($x)) {
            echo "$x\n";
        }
        return get_called_class();
    }
}

class B extends A {
}
class C extends A {
}
class D extends A {
}

echo A::test(B::test(C::test(D::test())))."\n";
?>
--EXPECT--
D
C
B
A