File: //usr/share/php/Symfony/Bundle/FrameworkBundle/Resources/config/session.xml
<?xml version="1.0" ?>
<container xmlns="http://symfony.com/schema/dic/services"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://symfony.com/schema/dic/services https://symfony.com/schema/dic/services/services-1.0.xsd">
<parameters>
<parameter key="session.metadata.storage_key">_sf2_meta</parameter>
</parameters>
<services>
<defaults public="false" />
<service id="session" class="Symfony\Component\HttpFoundation\Session\Session" public="true">
<argument type="service" id="session.storage" />
<argument type="service" id="session.attribute_bag" />
<argument type="service" id="session.flash_bag" />
</service>
<service id="Symfony\Component\HttpFoundation\Session\SessionInterface" alias="session" />
<service id="Symfony\Component\HttpFoundation\Session\Storage\SessionStorageInterface" alias="session.storage" />
<service id="SessionHandlerInterface" alias="session.handler" />
<service id="session.storage.metadata_bag" class="Symfony\Component\HttpFoundation\Session\Storage\MetadataBag">
<argument>%session.metadata.storage_key%</argument>
<argument>%session.metadata.update_threshold%</argument>
</service>
<service id="session.storage.native" class="Symfony\Component\HttpFoundation\Session\Storage\NativeSessionStorage">
<argument>%session.storage.options%</argument>
<argument type="service" id="session.handler" />
<argument type="service" id="session.storage.metadata_bag" />
</service>
<service id="session.storage.php_bridge" class="Symfony\Component\HttpFoundation\Session\Storage\PhpBridgeSessionStorage">
<argument type="service" id="session.handler" />
<argument type="service" id="session.storage.metadata_bag" />
</service>
<service id="session.flash_bag" class="Symfony\Component\HttpFoundation\Session\Flash\FlashBag" />
<service id="Symfony\Component\HttpFoundation\Session\Flash\FlashBagInterface" alias="session.flash_bag" />
<service id="session.attribute_bag" class="Symfony\Component\HttpFoundation\Session\Attribute\AttributeBag" />
<service id="session.storage.mock_file" class="Symfony\Component\HttpFoundation\Session\Storage\MockFileSessionStorage">
<argument>%kernel.cache_dir%/sessions</argument>
<argument>MOCKSESSID</argument>
<argument type="service" id="session.storage.metadata_bag" />
</service>
<service id="session.handler.native_file" class="Symfony\Component\HttpFoundation\Session\Storage\Handler\StrictSessionHandler">
<argument type="service">
<service class="Symfony\Component\HttpFoundation\Session\Storage\Handler\NativeFileSessionHandler">
<argument>%session.save_path%</argument>
</service>
</argument>
</service>
<service id="session_listener" class="Symfony\Component\HttpKernel\EventListener\SessionListener">
<tag name="kernel.event_subscriber" />
<argument type="service_locator">
<argument key="session" type="service" id="session" on-invalid="ignore" />
<argument key="initialized_session" type="service" id="session" on-invalid="ignore_uninitialized" />
</argument>
</service>
<service id="session.save_listener" class="Symfony\Component\HttpKernel\EventListener\SaveSessionListener">
<deprecated>The "%service_id%" service is deprecated since Symfony 4.1. Use the "session_listener" service instead.</deprecated>
</service>
<!-- for BC -->
<service id="session.storage.filesystem" alias="session.storage.mock_file" />
</services>
</container>