Nikola Poša "Handling exceptional conditions with grace and style"

$class Order { public function __construct( Product $product, Customer $customer, ?Discount $discount ) { $this->product = ...$

$?Discount $discount if (null !== $this->discount) { } class Order1 {2 public function __construct(3 Product $product,4 Cus...$

$Discount $discount class Order1 {2 public function __construct(3 Product $product,4 Customer $customer,5 6 ) {7 $this->pro...$

$Using Whoops final class ErrorHandlerFactory { public function __invoke(ContainerInterface $container) { $whoops = new Who...$

$class TodoTest extends TestCase { /** * @test */ public function it_gets_completed() { $todo = Todo::from('Book flights', ...$

$/** * @test */ public function it_throws_exception_on_reopening_if_incomplete() { $todo = Todo::from('Book flights', TodoS...$