When should class instances be used in PHP programming?

Class instances should be used in PHP programming when you need to create multiple objects with the same structure and behavior. By defining a class, you can encapsulate data and methods related to a specific entity or concept, making your code more organized and reusable. You can create instances of a class by using the `new` keyword followed by the class name, allowing you to work with multiple independent objects based on the same blueprint. 

class Car {
    public $brand;
    public $model;

    public function __construct($brand, $model) {
        $this->brand = $brand;
        $this->model = $model;
    }

    public function displayInfo() {
        echo "Brand: " . $this->brand . ", Model: " . $this->model . "\n";
    }
}

$car1 = new Car("Toyota", "Corolla");
$car2 = new Car("Honda", "Civic");

$car1->displayInfo();
$car2->displayInfo();

Keywords

class instances PHP programming object-oriented programming instantiation object-oriented design

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