Zend FR

[lang=php]
$this->add(array(
            'type' => 'Radio',
            'name' => 'choix_formule',
            'options' => array(
                'label' => 'mylabel',
                'value_options' => array(
                    '1' => 'Formule A : ....',
                    '2' => 'Formule B : ...',
                ),
            ),
            'attributes' => array(
                'value' => '1' //set checked to '1'
            )
        ));

<?php

namespace Site\Form;

use Zend\Form\Element;
use Zend\Form\Form;
use Zend\Captcha;
use Zend\Captcha\Image;


class DevisForm extends Form
{
public function __construct($urlcaptcha = null)
    {

        parent::__construct('');

        $this->setName('devis');
        $this->setAttribute('method', 'post');

        $this->setAttribute('novalidate', 'novalidate');

        $this->setAttribute('class', 'form-horizontal devis');


/*
         * Choix de Garantie Dépendance
         */

        $this->add(array(
            'type' => 'Radio',
            'name' => 'choix_garantie',
            'attributes' => array(
                'value' => 'Formule A : Dépendance totale',
            ),
            'options' => array(
                'label' => '',
                'value_options' => array(
                    'Formule A : Dépendance totale' => 'Formule A : Dépendance totale <a href="javascript:void(0);" class="popover1" data-trigger="hover" data-html="true" data-placement="auto" data-toggle="popover" data-content="' . $this->_tabAide["choix_formuleA"] . '"><span class="glyphicon glyphicon-info-sign"></span></a>',
                    'Formule A : Dépendance totale et partielle' => 'Formule B : Dépendance totale et partielle <a href="javascript:void(0);" class="popover1" data-trigger="hover" data-html="true" data-placement="auto" data-toggle="popover" data-content="' . $this->_tabAide["choix_formuleB"] . '"><span class="glyphicon glyphicon-info-sign"></span></a>',
                ),
                'disable_inarray_validator' => false
            ),
        ));

<?php

namespace Site\Form;

use Zend\InputFilter\InputFilter;
use Zend\Validator\NotEmpty;
use Zend\Validator\StringLength;
use Zend\Validator\EmailAddress;

use Zend\Captcha;
use Zend\Captcha\Image as CaptchaImage;

use Zend\Captcha\AbstractAdapter;
use Zend\Captcha\AbstractWord;


class DevisFormInputFilter extends InputFilter {

    public function __construct() {
/*
         * Choix de Garantie Dépendance
         */
        $this->add(array(
            'name' => 'choix_garantie',
            'required' => true,
            'validators' => array(
                array('name' => 'NotEmpty', 'options' => array(
                    'messages' => array(
                        NotEmpty::IS_EMPTY => 'Le champs ne doit pas être vide !',
                    ),
                )),
            ),
        ));

public function formdevisAction()
    {
        $form = new DevisForm($this->getRequest()->getBaseUrl() . '/data/captcha/');
        $form->setInputFilter(new DevisFormInputFilter());

        $request = $this->getRequest();
        if ($request->isPost()) {
            $form->setData($request->getPost());

            if ($form->isValid()) {die("FORM VALIDE");
                $this->renderer = $this->getServiceLocator()->get('ViewRenderer');
                $html = $this->renderer->render('site/tpl/devis', null);


                $formDatas = $form->getData();
                foreach ($formDatas as $key => $value) {
                    if (is_string($value))
                        ${$key} = utf8_decode($value);
                    else
                        ${$key} = $value;

                    $html = str_replace("[[" . $key . "]]", $value, $html);
                }

                //echo $html;die;

                $getContact = $this->getServiceLocator()->get('mail.contact');

                $transport = $this->getServiceLocator()->get('mail.transport');
                $email = new Email($transport, $getContact['from']);
                $email->envoyer($getContact['to'], "Envoi d'un message du site", $html);

                return $this->redirect()->toRoute('site', array('action' => 'sendsuccess'));
            }
        }


        return array(
            "form" => $form
        );
    }