use DI\ContainerBuilder; $containerBuilder = new ContainerBuilder(); $containerBuilder->addDefinitions([ 'db.host' => 'localhost', 'db.port' => 3306, 'db.name' => 'my_database', 'db.user' => 'my_username', 'db.pass' => 'my_password', ]); $myDatabase = $containerBuilder->build()->get('MyDatabase');
class CarBuilder { private $car; public function __construct() { $this->car = new Car(); } public function addWheels($numWheels) { $this->car->setWheels($numWheels); return $this; } public function addEngine($engineType) { $this->car->setEngine($engineType); return $this; } public function build() { return $this->car; } } $builder = new CarBuilder(); $car = $builder->addWheels(4)->addEngine('V8')->build();In this example, we are using an object builder to create a `Car` object. We use the `CarBuilder` class to add wheels and an engine to the car object incrementally. Once we are done with the configuration, we use the `build()` method to return the fully configured `Car` object. In conclusion, PHP object builders provide an easy way to create and configure objects in PHP. Libraries such as PHP-DI are popular for creating object builders, and design patterns such as the Builder pattern can also be used for the same purpose.