class Car {
    private $brand;
    private $color;
 
    public function setBrand($brand) {
        $this->brand = $brand;
    }
 
    public function setColor($color) {
        $this->color = $color;
    }
 
    public function drive() {
        echo "Driving the $this->color $this->brand car.";
    }
}
 
$car = new Car();
$car->setBrand('Toyota');
$car->setColor('blue');
$car->drive();
 

class Car {
    private $brand;
    private $color;
 
    public function setBrand($brand) {
        $this->brand = $brand;
        return $this; // Return $this to enable method chaining
    }
 
    public function setColor($color) {
        $this->color = $color;
        return $this; // Return $this to enable method chaining
    }
 
    public function drive() {
        echo "Driving the $this->color $this->brand car.";
    }
}
 
$car = new Car();
$car->setBrand('Toyota')->setColor('blue')->drive();