function ServiceSubscriberInterface::getSubscribedServices

Returns an array of service types (or {by such instances, optionally keyed by the service names used internally.

For mandatory dependencies:

• ['logger' => 'Psr\Log\LoggerInterface'] means the objects use the "logger" name internally to fetch a service which must implement Psr\Log\LoggerInterface.
• ['loggers' => 'Psr\Log\LoggerInterface[]'] means the objects use the "loggers" name internally to fetch an iterable of Psr\Log\LoggerInterface instances.
• ['Psr\Log\LoggerInterface'] is a shortcut for
• ['Psr\Log\LoggerInterface' => 'Psr\Log\LoggerInterface']

otherwise:

• ['logger' => '?Psr\Log\LoggerInterface'] denotes an optional dependency
• ['loggers' => '?Psr\Log\LoggerInterface[]'] denotes an optional iterable dependency
• ['?Psr\Log\LoggerInterface'] is a shortcut for
• ['Psr\Log\LoggerInterface' => '?Psr\Log\LoggerInterface']

additionally, an array of {

• [new SubscribedService('logger', Psr\Log\LoggerInterface::class)]
• [new SubscribedService(type: Psr\Log\LoggerInterface::class, nullable: true)]
• [new SubscribedService('http_client', HttpClientInterface::class, attributes: new Target('githubApi'))]

Return value

string[]|SubscribedService[] The required service types, optionally keyed by service names

See also

SubscribedService} objects) required

SubscribedService}'s can be returned:

File

vendor/symfony/service-contracts/ServiceSubscriberInterface.php, line 61

Class

ServiceSubscriberInterface

A ServiceSubscriber exposes its dependencies via the static {@link getSubscribedServices} method.

Namespace

Symfony\Contracts\Service

Code

public static function getSubscribedServices() : array;