How to use custom twig functions in laravel using TwigBridge

Question

I'm using twig with laravel using TwigBridge. I'd like to register a custom function to use from within twig templates.

The documents states that extensions can be added via the extension-array, but this isn't clear to me.

What extension array is the documentation referring to?

Answer 1

The process I followed was:

1. Create my filters class at app/extensions/twig/TwigFilters.php:

   namespace App\Extensions\Twig;
   
   class TwigFilters extends \Twig_Extension {
       //... filters implementation
   }
   

2. Add the filter folder to composer.json autoload > classmap

   "autoload": {
       "classmap": [
           ...
           "app/extensions/twig",
           ...
       ]
   },
   

3. Update autoloader: php composer.phar dump-autoload

4. Create the TwigBridge config at app/config/packages/rcrowe/twigbridge/config.php:

   php artisan config:publish rcrowe/twigbridge
   

5. Edit the extensions key on the previously created config.php:

   'extensions' => array(
       ...
       'App\Extensions\Twig\TwigFilters',
       ...
   )
   

6. All filters defined in that class are already available in the Twig views.

Additional Info:

• Twig Extensions documentation

Answer 2

What is referring is to this array in the config file. You should publish the config to your app/ using php artisan config:publish rcrowe/twigbridge and then edit that array. As you can see in the same config file you can also add alias.

You can create a class with your custom functions extending \TwigBridge\Extension and then add it to your config.