Using a custom function in twig

Question

In my template I want to output the server timezone.

My template has something like

{{ getservertimezone }}

Then in the services.yml co

Answer 1

Symfony ^2.6 - twig ^1.38

See example below

---

AppExtension.php

namespace Your/NameSpace;

class AppExtension extends \Twig_Extension {

    public function getFilters() 
    {
        return array(
            new \Twig_SimpleFilter('cdn_asset_filter', array($this, 'cdn_asset_filter')),
        );
    }

    public function getFunctions()
    {
        return array(
            new \Twig\TwigFunction('cdn_asset_function', array($this, 'cdn_asset_function')),
        );
    }


    public function cdn_asset_filter($path) 
    {
        return "https://cdn.example.com/$path";
    }


    public function cdn_asset_function($path) 
    {
        return "https://cdn.example.com/$path";
    }
}

---

view.html.twig

// Filter



// result : 


// Function



// result : 

---

app/config/services.yml

services:
    my_global_filters_and_functions:
        class: Your/NameSpace/AppExtension
        tags:
            - { name: twig.extension }

---

This is how i used custom functions in Twig in one my old projects, i don't know if it's a best practice, but it worked for me.

---

Resources : Twig Documentation - Extending Twig