function setPrivate()
    {
        $this->p = 'changed';
    }
}
class D extends C
{
    function setP()
    {
        $this->p = 'changed in D';
    }
}
echo "Unset and recreate a superclass's private property:\n";
$d = new D();
$d->unsetPrivate();
$d->setPrivate();
var_dump($d);
echo "\nUnset superclass's private property, and recreate it as public in subclass:\n";
$d = new D();
$d->unsetPrivate();
$d->setP();
var_dump($d);
echo "\nUnset superclass's private property, and recreate it as public at global scope:\n";
$d = new D();
$d->unsetPrivate();
$d->p = 'this will create a public property';
var_dump($d);
echo "\n\nUnset and recreate a private property:\n";
$c = new C();
$c->unsetPrivate();
$c->setPrivate();