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25 interview questions on Symfony 6for developers (2025)

Test your technical skills before an interview of Symfony 6 with 25 corrected questions. Beginner, Intermediate or Expert level.

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25 questions
Easy
8 votes1812 runs
1 comment

What does the 'auto' password hasher do in Symfony?

Back-end developer
hashing
password
smaine milianniat Feb 16, 2022
Medium
7 votes1869 runs2 comments

Events listeners are easier to reuse because the knowledge of the events is kept in the class rather than in the service definition.

Back-end developer
symfony
events
smaine milianniat Feb 16, 2022
Easy
7 votes1627 runs
1 comment

List the directories to which you must give write permissions on your web server.

Back-end developer
directories
permissions
Vincent Cotroat May 16, 2022
Easy
6 votes1841 runs
1 comment

List the security providers that don't exist in Symfony

Back-end developer
symfony
security
smaine milianniat Feb 16, 2022
Easy
6 votes1349 runs
2 comments

Extending the class `Symfony\Bundle\FrameworkBundle\Controller\AbstractController;` allows my controller to be declared as a service

Back-end developer
symfony
controller
smaine milianniat Feb 16, 2022
Medium
6 votes1288 runs
2 comments

How to use a constant in Twig?

Back-end developer
twig
constants
Samaël Villetteat Apr 27, 2023
Medium
5 votes1740 runs
2 comments

The class Foo exists is registered as a service only in the "dev" and "test" environment

Back-end developer
symfony
environment
smaine milianniat Feb 16, 2022
Easy
5 votes816 runs0 comment

What do the `persist` and `flush` methods of the Doctrine `EntityManager` do when called successively on a new entity?

Back-end developer
Jérômeat Feb 29, 2024
Easy
4 votes1759 runs1 comment

How to make a Symfony voter faster

Back-end developer
symfony
voter
cache
smaine milianniat Feb 16, 2022
Hard
4 votes1233 runs
2 comments

How to use URLs in a functional test in Symfony

Back-end developer
symfony
functional test
Thomas Cochardat Sep 5, 2023
Easy
3 votes1713 runs
1 comment

Enable a bundle by environment in Symfony

Back-end developer
bundles
environment
smaine milianniat Feb 16, 2022
Medium
2 votes1794 runs2 comments

Which methods do not exist in the following class?

Back-end developer
symfony
controller
smaine milianniat Jul 19, 2024
Easy
2 votes1768 runs1 comment

Which method does not exist in the class`Symfony\Component\HttpKernel\Event\KernelEvent;`?

Back-end developer
symfony
event
smaine milianniat Feb 16, 2022
Medium
2 votes1737 runs
1 comment

Lint the container to check that the arguments injected into services match their type declarations.

Back-end developer
symfony
container
smaine milianniat Feb 16, 2022
Hard
2 votes1721 runs
2 comments

Which kernel event does not exist in Symfony?

Back-end developer
symfony
kernel
smaine milianniat Feb 16, 2022
Easy
2 votes1087 runs
1 comment

How to make a HTTP request in Symfony

Back-end developer
HTTP request
Symfony
Anonymous authorat Oct 24, 2023
Medium
1 vote392 runs
1 comment

Check if an article has errors in Symfony

Back-end developer
symfony
validation
Mounirat Nov 8, 2024
Medium
0 vote1633 runs
2 comments

Find the intruder in the following code.

Back-end developer
symfony
console
smaine milianniat Feb 16, 2022
Medium
0 vote1006 runs
2 comments

Send a notification using Symfony Notifier

Back-end developer
symfony
notifier
recipient
Julien HUMBERTat Nov 7, 2023
Easy
0 vote374 runs0 comment

Does the OptionResolver component support PHP Enums?

Back-end developer
enums
symfony
Vincent Cotroat Oct 4, 2023