<?php
class X
{
function ref(&$ref)
{
$ref = 1;
}
function bar()
{
$this->ref($this->priv);
}
}
class Y extends X
{
private $priv;
}
class Z extends Y
{
}
$z = new Z();
$z->bar();
var_dump($z);
$y = new Y();
$y->bar();
var_dump($y);
