I just released a twig extension for https://github.com/sebastianbergmann/money

The money libary contains a money represention based on the currency’s smallest unit to provide a more accurate handling. See the libary’s readme for more information.

Although the v1.x version of Money brings a Formatter the Twig extension uses its own, which is better suited and more flexible.

What it does? See this:

{{ money|money_i18n_format('de_DE') }} 1.123,45 €
{{ money|money_i18n_format('en_US') }} €1,123.45
{{ money|money_i18n_decimal('en_US') }} 1,123.45
{{ money|money_currency_symbol('en_US') }} €
{{ money|money_currency_name('en_US') }} Euro

Check the readme for more information.

As Composer appeared, installation and autoloading is a breeze nowadays.
I presume here, that you have installed your Silex project via composer.
If so, you can install the twig extensions like this:

Just go to your project folder and run:

composer require twig/extensions:~1.0

and your done with installation and autoloading.

Now to integration and service registration, this also got more easy.

Place this after you have registered the twig service:

$app['twig'] = $app->share($app->extend('twig', function($twig, $app) {
    $twig->addExtension(new Twig_Extensions_Extension_Text($app));
    return $twig;
}));

Thats it, now you can use the text filters in your twig templates:

{{ post.content|truncate(200)|raw }}

Easy…

I still did not get the point regarding dependency resolution, so i simply “composed” the composer file by writing down my own requirements (“i want only the hottest, newest stuff!!”, then tracked down the error messages, removing them by explicetly writing down the missing dependencies by using the latest “dev-*” versions. After that i tried to run the project, which actually did not work, but selective downgrade of some of the bundles (framework, security-extra blahblah) finally did the job.

Feel free to use it in your own projects:

{
	"require" : {
              "symfony/symfony" : "v2.0.12",
              "doctrine/common" : "2.1.4",
              "doctrine/orm" : "2.1.6",
              "symfony/finder" : "v2.0.12",

              "symfony/assetic-bundle" : "2.0-dev",
              "twig/extensions" : "dev-master",
              "jms/security-extra-bundle" : "1.1.0",
              "sensio/framework-extra-bundle" : "2.0-dev",
              "sensio/distribution-bundle" : "2.0-dev",
              "sensio/generator-bundle" : "2.0-dev"

 	},
        "autoload" : {
            "psr-0" : {
                "Acme" : "src/",
            }
        }
}

Create a file named “composer.json” in your project’s root directory, then paste the above code into it and save it.

Now run

$ curl -s http://getcomposer.org/installer | php

After that, download all dependencies by typing

$ php composer.phar install

The easiest way to create a full project including AcmeDemoBundle, AppKernel and the whole stuff is to download the symfony 2 standard distribution without vendors and calling the script from there. The only thing to do is to modify the path to autoload.php, which should point to vendor/.composer/autoload.php.

Now you are able to upgrade your project’s dependencies to the newest versions by simply modifying the composer.json file. Have fun!.

Actually its like in PHP:

{{ 11 % 7 }}

As described here

But i guess for most use cases modulus is used to check if a number is divisible by another number.
Therefore Twig has the very conveniant divisible by test function.

{% if loop.index is divisible by(3) %}

Another modulo use case is to check odd and even rows in loops. There Twig has the built-in function cycle to help you.

{{ cycle(['odd', 'even'], i) }}

Once you know its so eeasy;)