name : ServiceProviderInterface.php <?php /* * This file is part of the Symfony package. * * (c) Fabien Potencier <fabien@symfony.com> * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace Symfony\Contracts\Service; use Psr\Container\ContainerInterface; /** * A ServiceProviderInterface exposes the identifiers and the types of services provided by a container. * * @author Nicolas Grekas <p@tchwork.com> * @author Mateusz Sip <mateusz.sip@gmail.com> * * @template-covariant T of mixed */ interface ServiceProviderInterface extends ContainerInterface { /** * @return T */ public function get(string $id): mixed; public function has(string $id): bool; /** * Returns an associative array of service types keyed by the identifiers provided by the current container. * * Examples: * * * ['logger' => 'Psr\Log\LoggerInterface'] means the object provides a service named "logger" that implements Psr\Log\LoggerInterface * * ['foo' => '?'] means the container provides service name "foo" of unspecified type * * ['bar' => '?Bar\Baz'] means the container provides a service "bar" of type Bar\Baz|null * * @return array<string, string> The provided service types, keyed by service names */ public function getProvidedServices(): array; }