How to Debug the Service Container & List Services

You can find out what services are registered with the container using the console. To show all services (public and private) and their PHP classes, run:

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$ php bin/console debug:container

# add this option to display "hidden services" too (those whose ID starts with a dot)
$ php bin/console debug:container --show-hidden

To see a list of all of the available types that can be used for autowiring, run:

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$ php bin/console debug:autowiring

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$ php bin/console debug:container App\Service\Mailer

# to show the service arguments:
$ php bin/console debug:container App\Service\Mailer --show-arguments