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90 interview questions on Symfonyfor developers (2026)

Test your technical skills before an interview of Symfony with 90 corrected questions. Beginner, Intermediate or Expert level.

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90 questions
Easy
15 votes3715 runs1 comment

What is the minimum PHP version for Symfony 5?

Back-end developer
php
symfony
Smaïne Millaniat Dec 3, 2021
Easy
9 votes1986 runs
1 comment

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

Back-end developer
hashing
password
smaine milianniat Feb 16, 2022
Medium
8 votes3520 runs
3 comments

What is the signature of `Kernel :: terminate()` in Symfony?

Back-end developer
symfony
kernel
Smaïne Millaniat Apr 10, 2024
Medium
7 votes3663 runs0 comment

Override the vendor directory in Symfony

Back-end developer
composer
symfony
Smaïne Millaniat Dec 3, 2021
Medium
7 votes3660 runs
1 comment

Read the value of a form field in a Symfony template branch

Back-end developer
symfony
form
Smaïne Millaniat Dec 16, 2021
Medium
7 votes2064 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
Medium
7 votes1441 runs
2 comments

How to use a constant in Twig?

Back-end developer
twig
constants
Samaël Villetteat Apr 27, 2023
Easy
7 votes929 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
Medium
6 votes1807 runs
2 comments

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

Back-end developer
directories
permissions
Vincent Cotroat May 16, 2022
Hard
5 votes3496 runs
1 comment

How to verify that the arguments injected into a service match their type declaration in Symfony

Back-end developer
symfony
container
Smaïne Millaniat Dec 16, 2021
Easy
5 votes3332 runs
1 comment

Which format respects the good naming practices of a TWIG file?

Back-end developer
twig
naming
Smaïne Millaniat Dec 2, 2021
Hard
5 votes3296 runs0 comment

When configuring a service, in which case should the shared option be set to false?

Back-end developer
symfony
services
Smaïne Millaniat Mar 13, 2023
Medium
5 votes2033 runs
2 comments

List the security providers that don't exist in Symfony

Back-end developer
symfony
security
smaine milianniat Feb 16, 2022
Medium
5 votes1931 runs1 comment

How to make a Symfony voter faster

Back-end developer
symfony
voter
cache
smaine milianniat Feb 16, 2022
Medium
5 votes1916 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 votes1423 runs
3 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
Hard
5 votes352 runs
2 comments

How to use Symfony Request and Response objects in a middleware?

Back-end developer
design pattern
interface
Julien Breuxat Jul 19, 2024
Hard
4 votes3331 runs2 comments

Which class is not part of Symfony?

Back-end developer
classes
symfony
Smaïne Millaniat Nov 22, 2023
Easy
4 votes1941 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
Easy
4 votes1880 runs
1 comment

Enable a bundle by environment in Symfony

Back-end developer
bundles
environment
smaine milianniat Feb 16, 2022
Symfony tests