<?php

$nokiaPhone = new Phone("Nokia 6610");
$kim = new Employee("Victorya", "Kim", 
    new Phone("iPhone 5"));

class Phone {
    public $model;

    public function __construct($model) {
        $this->model = $model;
    }
}

class Employee {
    public $firstName;
    public $lastName;
    public $personalPhone;

    public function __construct($firstName, $lastName, $personalPhone) {
        $this->firstName = $firstName;
        $this->lastName = $lastName;
        $this->personalPhone = $personalPhone;
    }
}

print_r($kim);