Online PHP editor | output for 8RF9j

<?php class Car { private $model = ""; private $year = ""; private $passengers =array(); function addDetails($model,$year,$passenger) { $this->model = $model; $this->year = $year; array_push($this->passengers, $passenger); } function getDetails() { echo $this->model; echo PHP_EOL; echo $this->year; echo PHP_EOL; print_r($this->passengers); } } $herbie = new Car(); $herbie->addDetails("vw","1997","Mike"); $herbie->getDetails();