How to create Twig Function in Symfony ?

Twig Extension is used to create functions for twig templates.

Twig is a powerful templating engine used in Symfony. Twig provides a large set of built-in functions, there are scenarios where you may need to create custom functionality. This is where custom Twig functions come into play.

In my last blog, I mentioned how Twig Filters are used in development. Same way we can implement twig filters too. It is almost same procedure to create it.

Here you can check official default twig functions and filters

In this blog, I will walk you through the steps to create a custom Twig function in Symfony, explaining each step in detail and providing a practical example.

Why Create Custom Twig Functions?

A custom Twig function allows you to extend the functionality of Twig templates by adding your own reusable logic. This is useful when you want to perform specific tasks directly within your templates, such as formatting dates, handling specific business logic, or integrating with third-party services.

Steps to Create a Custom Twig Function

1. Create a Twig Extension Class

The first step is to create a class that extends \Twig\Extension\AbstractExtension. This…