Online PHP editor | output for aQn2h

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