<?php
class Car{
    public $model;
    public $owner;
    
    public function __construct($model,$owner){
    $this->model=$model;
    $this->owner=$owner;
    }
public function __clone(){
    $this->owner="Unknown";
    }
}
$car1=new car("Toyota","Alice");
$car2=clone $car1;

echo"Car1 Model:".$car1->model.".owner:".$car1->owner."\n";
echo"Car2 Model:".$car2->model.".owner:".$car2->owner."\n";
?>