How to set a variable in Doctrine on connection?

Question

MySQL

Tell me how you can set a variable at the very beginning of the session in MySQL when using the Doctrine.
When connecting to the database, I need to do at the very beginning

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To make this variable available to stored procedures on the server. During the session.
ZEND FRAMEWORK

Answer 1

Something similar is implemented in the user registration remembering module.
The procedure occurs simultaneously both through sessions and through Doctrine.
goalio/GoalioRememberMe
goalio/GoalioRememberMeDoctrineORM

Answer 2

Use postConnect event
https://www.doctrine-project.org/projects/doctrine...