Online PHP editor | perf for 1uR3Y

<?php final readonly class Product { public function __construct( public string $id, public string $name, public string $description, public int $price = 10, ) { } } final class Cart { /** * @param Product[] $products */ public function __construct( public string $id, public array $products = [], public int $total = 0, public int $quantity = 0, ) { } public function addProduct(Product $product): void { $this->products[] = $product; $this->quantity++; $this->total += $product->price; } } final readonly class ProductRepository { public function find(string $id): Product { // Simulate loading from database return new Product($id, "product-$id", "description-$id"); } public function findByIds(array $ids): array { // Simulate loading from database $products = []; foreach ($ids as $id) { $products[] = $this->find($id); } return $products; } } final readonly class CartRepository { private ReflectionClass $reflector; public function __construct( private ProductRepository $productRepository, ) { $this->reflector = new ReflectionClass(Cart::class); } public function serialize(Cart $cart): string { return json_encode([ 'id' => $cart->id, 'products' => array_column($cart->products, 'id'), 'total' => $cart->total, 'quantity' => $cart->quantity, ]); } public function unserialize(string $data): Cart { var_dump('...Unserializing cart...'); $previousCart = json_decode($data, true); $newCart = $this->reflector->newLazyGhost(function(Cart $newCart) use ($previousCart): void { var_dump('...Loading products...'); $products = $this->productRepository->findByIds($previousCart['products']); $this->reflector->getProperty('products')->setValue($newCart, $products); }); $this->reflector->getProperty('id')->setRawValueWithoutLazyInitialization($newCart, $previousCart['id']); $this->reflector->getProperty('total')->setRawValueWithoutLazyInitialization($newCart, $previousCart['total']); $this->reflector->getProperty('quantity')->setRawValueWithoutLazyInitialization($newCart, $previousCart['quantity']); return $newCart; } } $productRepository = new ProductRepository(); $repository = new CartRepository($productRepository); $cart = new Cart('#cart-01'); $cart->addProduct($productRepository->find('1')); $cart->addProduct($productRepository->find('2')); $cart->addProduct($productRepository->find('3')); // Usually, the $serialized string would be stored in a database or in the // session $serialized = $repository->serialize($cart); // A new HTTP request is made and the $serialized string is retrieved from the // DB or the sessions $newCart = $repository->unserialize($serialized); var_dump($newCart); var_dump($newCart->total); $newCart->products; var_dump($newCart);

Version	System time (s)	User time (s)	Memory (MiB)
8.5.1	0.014	0.009	16.76
8.5.0	0.016	0.006	19.98
8.4.16	0.013	0.010	24.00
8.4.15	0.002	0.001	14.05
8.4.14	0.017	0.008	17.51
8.4.13	0.006	0.003	17.41
8.4.12	0.014	0.007	20.71
8.4.11	0.013	0.004	22.36
8.4.10	0.011	0.011	17.93
8.4.9	0.010	0.011	17.86
8.4.8	0.012	0.008	19.63
8.4.7	0.003	0.006	19.66
8.4.6	0.014	0.007	18.54
8.4.5	0.008	0.012	20.55
8.4.4	0.012	0.009	17.80
8.4.3	0.016	0.003	20.26
8.4.2	0.017	0.003	19.29
8.4.1	0.009	0.000	19.38
8.3.28	0.012	0.009	20.21
8.3.27	0.011	0.008	16.66
8.3.26	0.010	0.006	16.72
8.3.25	0.008	0.011	18.84
8.3.24	0.011	0.008	16.72
8.3.23	0.004	0.004	16.61
8.3.22	0.008	0.011	16.73
8.3.21	0.010	0.008	16.70
8.3.20	0.006	0.003	16.54
8.3.19	0.009	0.009	17.11
8.3.18	0.011	0.009	16.83
8.3.17	0.013	0.006	17.31
8.3.16	0.011	0.007	19.22
8.3.15	0.012	0.006	17.05
8.3.14	0.012	0.003	16.94
8.3.13	0.012	0.006	18.72
8.3.12	0.008	0.004	16.83
8.3.11	0.009	0.000	16.91
8.3.5	0.004	0.007	16.54
8.2.29	0.013	0.006	19.15
8.2.28	0.009	0.010	18.66
8.2.27	0.010	0.010	16.61
8.2.26	0.011	0.007	17.25
8.2.25	0.007	0.013	16.87
8.2.24	0.008	0.000	16.86
8.2.23	0.000	0.009	16.82
8.1.33	0.007	0.011	16.58
8.1.32	0.009	0.003	17.69
8.1.31	0.000	0.017	16.68
8.1.30	0.004	0.004	16.05