Code snippets

You will find here 6 code snippets I find useful so I don't have to Google ™ or Stackoverflow ™ them when I need. There are also code snippets I always forget! 😁 Sometimes, related links to the code will be available. The main difference with other random snippets you will find on the web is that in most cases (for the Symfony related ones) you will be able to run them directly from this website to check the output so you can verify it works as expected ™.

In this snippet, we will see how to check if a French SIRET number is valid with the Luhn algorithm. Check out the Wikipedia page ...

algorithm

Published on 2020-09-24 • Modified on 2020-09-24

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In this snippet, we will see how to mark with an asterisk all the required fields of a Symfony form. We will do it with CSS. Inspe...

Symfony

Published on 2020-08-25 • Modified on 2020-08-25

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Sometimes it's useful to know if a form is valid inside a Twig template. Indeed, when using the form_ helpers like form_error all ...

Symfony

Published on 2019-07-23 • Modified on 2019-11-08

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When having form for entities, it is common to have unique constraints, for example on the username or the email of a user. I am n...

Symfony

Published on 2019-07-04 • Modified on 2019-07-04

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Sometimes validating each field of a form is not enough. In some cases you need a conditional validation. That means that the vali...

Symfony

Published on 2019-03-26 • Modified on 2019-03-28

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It is sometimes useful to be able to use the Symfony validation services outside of the form context. In a controller for example ...

Symfony

Published on 2019-01-30 • Modified on 2019-01-30

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