Online PHP editor | refs for DvVbH

<?php class Test { public int $number = 5; } class DIContainerException extends Exception{} interface ContainerInterface { public function get(string $id): mixed; public function has(string $id): bool; } class DIContainer implements ContainerInterface { private array $registered = []; private array $created = []; public function register(string $id, callable $factory): void { if ($this->has($id)) { throw new DIContainerException('Сервис с таким именем уже зарегистрирован.'); } $this->registered[$id] = $factory; } public function get(string $id): mixed { if (array_key_exists($id, $this->created)) { return $this->created[$id]; } elseif ($this->has($id)) { $object = call_user_func($this->registered[$id], $this); $this->created[$id] = $object; return $object; } else { throw new DIContainerException('Сервис с таким именем не зарегистрирован.'); } } public function has(string $id): bool { return isset($this->registered[$id]); } } $container = new DIContainer(); $container->register('Test', function(DIContainer $container) { return new Test(); }); var_dump($container->get('Test'));