| AbstractSessionHandler | This abstract session handler provides a generic implementation of the PHP 7.0 SessionUpdateTimestampHandlerInterface, enabling strict and lazy session handling. |
| MarshallingSessionHandler | |
| MemcachedSessionHandler | Memcached based session storage handler based on the Memcached class provided by the PHP memcached extension. |
| MigratingSessionHandler | Migrating session handler for migrating from one handler to another. It reads from the current handler and writes both the current and new ones. |
| MongoDbSessionHandler | Session handler using the mongodb/mongodb package and MongoDB driver extension. |
| NativeFileSessionHandler | Native session handler using PHP's built in file storage. |
| NullSessionHandler | Can be used in unit testing or in a situations where persisted sessions are not desired. |
| RedisSessionHandler | Redis based session storage handler based on the Redis class provided by the PHP redis extension. |
| SessionHandlerFactory | |
| StrictSessionHandler | Adds basic `SessionUpdateTimestampHandlerInterface` behaviors to another `SessionHandlerInterface`. |