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Code snippets

You will find here 295 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 ™.

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Using the JavaScript Fetch API asynchronously

In this snippet, we will see how to use the JavaScript Fetch API asynchronously. Open your JavaScript console and click on the "fe...

JavaScript

Published on 2020-10-25 • Modified on 2020-10-25

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... by COil
 JavaScript  api  fetch  async  await

Getting the active Symfony application's environment

In this snippet, we will see how to get the active Symfony application's environment. There are two ways of doing it: by using the...

Symfony

Published on 2020-10-10 • Modified on 2020-10-10

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... by COil
 Symfony  Environment  dotenv  application  configuration

Testing if a date corresponds to a working day with PHP

In this snippet, we will see how to check if a date corresponds to a working day. To do so, we have to use the 'N' (upper case) pa...

PHP

Published on 2020-10-02 • Modified on 2020-10-02

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... by COil
 PHP  date

Validating a French SIRET number with the Luhn algorithm

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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... by COil
 algorithm  PHP  data  luhn  Validation

Testing an exception with PHPUnit/Symfony

In this snippet, we will see how to test if the code throws an exception. We will use the PHPUnit expectException() function with ...

phpunit

Published on 2020-09-20 • Modified on 2020-09-20

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... by COil
 phpunit  tests  tdd  Symfony  exception

Checking if the Elasticsearch service of a Docker container is ready

This is the third part of the "wait-for-this-service" series (check the links below the code). In the last snippet, we saw how to ...

Docker

Published on 2020-09-08 • Modified on 2020-09-08

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... by COil
 Docker  Docker compose  elasticsearch  container  service  bash

Checking if the MySQL service of a Docker container is ready

In the previous snippet, we saw how to do it for a Postgres service; now it's for MySQL. The process is similar, but there is a sl...

Docker

Published on 2020-09-03 • Modified on 2020-09-03

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... by COil
 Docker  Docker compose  MySQL  container  service  bash

Checking if the Postgres service of a Docker container is ready

In this snippet, we will see how to wait for the Postgres service to be available before using it. It's to avoid the following kin...

Docker

Published on 2020-08-30 • Modified on 2020-08-30

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... by COil
 Docker  Docker compose  postgres  container  service  bash

Marking Symfony forms required fields with an asterisk

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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... by COil
 Symfony  Form  Validation  css

Getting the block names of a Twig template

In this snippet, we will see how to get the block names of a Twig template. To do so, we must use the Twig\Environment service whi...

Twig

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

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... by COil
 Twig  template  block