8000 [#5922] Tweaks thanks to reviewers · symfony/symfony-docs@41670b0 · GitHub
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[#5922] Tweaks thanks to reviewers
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‎cookbook/map.rst.inc‎

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* :doc:`/cookbook/service_container/index`
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* :doc:`/cookbook/service_container/shared`
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* :doc:`/cookbook/service_container/scopes`
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* :doc:`/cookbook/service_container/compiler_passes`
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* (Event Dispatcher) :doc:`/cookbook/event_dispatcher/event_listener`

‎cookbook/service_container/shared.rst‎

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.. index::
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single: Service Container; Shared Services
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How to Define Not Shared Services
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How to Define Non Shared Services
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=================================
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.. versionadded:: 2.8
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In the service container, all services are shared by default. This means that
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each time you retrieve the service, you'll get the *same* instance. This is
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often the behaviour you want, but in some cases, you might want to always get a
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often the behavior you want, but in some cases, you might want to always get a
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*new* instance.
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In order to always get a new instance, set the ``shared`` setting to ``false``
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.. code-block:: yaml
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# app/config/services.yml
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services:
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app.some_not_shared_service:
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class: ...
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.. code-block:: xml
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<!-- app/config/services.xml -->
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<services>
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<service id="app.some_not_shared_service" class="..." shared="false" />
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</services>
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.. code-block:: php
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use Symfony\Component\DependencyInjection\Definition;
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// app/config/services.php
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$definition = new Definition('...');
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$definition->setShared(false);
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$container->setDefinition('app.some_not_shared_service', $definition);
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Now, whenever you call ``$container->get('app.some_not_shared_service')`` or
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inject this service, you'll recieve a new instance.
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inject this service, you'll receive a new instance.

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