POC that PHP doesn't allow calling private methods from inherited context

privateaccess.php

<?php
class MyParent
{
    public function includeFile()
    {
        include "privateaccess_included.php";
    }
}

class MyChild extends MyParent
{
    public function publicMethod()
    {
        echo "Hello public world!".PHP_EOL;
    }

    protected function protectedMethod()
    {
        echo "Hello protected world!".PHP_EOL;
    }

    private function privateMethod()
    {
        echo "Hello private world!".PHP_EOL;
    }
}

$myclass = new MyChild();
$myclass->includeFile();

privateaccess_included.php

<?php
$this->publicMethod();
$this->protectedMethod();
$this->privateMethod();

executing (on PHP v 5.5.22)

php -f privateaccess.php

you get the following output:

Hello public world!
Hello protected world!
PHP Fatal error:  Call to private method MyChild::privateMethod() from context 'MyParent' in /home/alessandro/NetBeansProjects/dojo/pugmore/coderetreat/privateaccess_included.php on line 4