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How to Define Non Shared Services

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Warning: You are browsing the documentation for Symfony 3.3, which is no longer maintained.

Read the updated version of this page for Symfony 6.2 (the current stable version).

How to Define Non Shared Services

In the service container, all services are shared by default. This means that each time you retrieve the service, you'll get the same instance. This is usually the behavior you want, but in some cases, you might want to always get a new instance.

In order to always get a new instance, set the shared setting to false in your service definition:

  • YAML
  • XML
  • PHP
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# app/config/services.yml
services:
    AppBundle\SomeNonSharedService:
        shared: false
        # ...
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<!-- app/config/services.xml -->
<services>
    <service id="AppBundle\SomeNonSharedService" shared="false" />
</services>
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// app/config/services.php
use AppBundle\SomeNonSharedService;

$container->register(SomeNonSharedService::class)
    ->setShared(false);

Now, whenever you request an the AppBundle\SomeNonSharedService from the container, you will be passed a new instance.

This work, including the code samples, is licensed under a Creative Commons BY-SA 3.0 license.
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