Simple form example with Silex

form.php

$app->register(new Silex\Provider\TranslationServiceProvider(), array(
    'locale_fallbacks' => array('en'),
));
$app->register(new Silex\Provider\FormServiceProvider());

$form = $app['form.factory']->createBuilder('form')
    ->add('name')
    ->add('email')
    ->add('gender', 'choice', array(
        'choices' => array(1 => 'male', 2 => 'female'),
        'expanded' => true,
    ))
    ->getForm();
    
$app['twig']->render('test.twig',array('form'=>$form->createView()));

screenshot.png

test.twig

<form action="#" method="post">
    {{ form_widget(form) }}
    <input type="submit" name="submit" />
</form>