Online PHP editor | refs for UPZOs

<?php class Cars implements Iterator { private $pointer = 0; private $array = array(); public function __construct() { $this->pointer = 0; } public function addCar($car) { array_push($this->array, $car); } function rewind() { $this->pointer = 0; } function current() { return $this->array[$this->pointer]; } function key() { return $this->pointer; } function next() { ++$this->pointer; } public function valid() { return isset($this->array[$this->pointer]); } } $car = new Cars; $car->addCar("Volvo"); $car->addCar("BMW"); $car->addCar("Mercedes"); foreach ($car as $key => $value) { echo $key . ": " . $value . "<br />"; }