1. interface
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  6. DependencyInjection
  7. \
  8. ServiceSubscriberInterface

ServiceSubscriberInterface deprecated

interface ServiceSubscriberInterface implements ServiceSubscriberInterface

deprecated since Symfony 4.2, use Symfony\Contracts\Service\ServiceSubscriberInterface instead.

{@inheritdoc}

Methods

static array
getSubscribedServices()

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

from ServiceSubscriberInterface

Details

static array getSubscribedServices()

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

For mandatory dependencies:

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

otherwise:

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

Return Value

array The required service types, optionally keyed by service names