Requirements
Simple ReCaptcha
Zend Form Class
source: application/forms/ReCaptcha.php
<?php
class Form_ReCaptcha extends Zend_Form
{
public function init()
{
$this->setMethod('post');
//Add your elements here...
$recaptcha = new Zend_Service_ReCaptcha($publickey, $privatekey);
$captcha = new Zend_Form_Element_Captcha('challenge',
array('captcha' => 'ReCaptcha',
'captchaOptions' => array('captcha' => 'ReCaptcha', 'service' => $recaptcha)));
$this->addElement($captcha);
// Add the submit button
$this->addElement('submit', 'submit', array('label' => 'Submit'));
}
}
?>
Zend Controller Class
source: application/controller/ReCaptchaController.php
<?php
class ReCaptchaController extends Zend_Controller_Action
{
public function indexAction()
{
require_once APPLICATION_PATH . '/forms/Contact.php';
$form = new Form_ReCaptcha();
if ($this->_request->isPost()) {
$formData = $this->_request->getPost();
if ($form->isValid($formData)) {
$recaptcha = new Zend_Service_ReCaptcha($publickey, $privatekey);
$result = $recaptcha->verify($this->_getParam('recaptcha_challenge_field'),
$this->_getParam('recaptcha_response_field'));
if (!$result->isValid()) {
//ReCaptcha validation error
//Your action here...
}
}
}
$this->view->form = $form;
}
}
?>
Customized ReCaptcha
You may also want to internationalizing or change colors to ReCaptcha, to do it you need to specify some options for the Zend_Service_ReCaptcha object.
See the ReCaptcha wiki for a complete list of available options.
Zend Form Class
source: application/forms/ReCaptcha.php
<?php
class Form_ReCaptcha extends Zend_Form
{
public function init()
{
$this->setMethod('post');
//Add your elements here...
$recaptcha = new Zend_Service_ReCaptcha($publickey, $privatekey);
//Translate in your language
$recaptcha_it_translation =
array('visual_challenge' => "Verifica video",
'audio_challenge' => "Verifica audio",
'refresh_btn' => "Effettua una nuova verifica",
'instructions_visual' => "Scrivi le due parole",
'instructions_audio' => "Scrivi quello che ascolti",
'help_btn' => "Aiuto",
'play_again' => "Riascolto di nuovo l'audio",
'cant_hear_this' => "Scarica l'audio come MP3",
'incorrect_try_again' => "Incorretto. Prova ancora.");
$recaptcha->setOption('custom_translations', $recaptcha_it_translation);
//Change theme
$recaptcha->setOption('theme', 'clean');
$captcha = new Zend_Form_Element_Captcha('challenge',
array('captcha' => 'ReCaptcha',
'captchaOptions' => array('captcha' => 'ReCaptcha',
'service' => $recaptcha)));
$this->addElement($captcha);
// Add the submit button
$this->addElement('submit', 'submit', array('label' => 'Submit'));
}
}
?>
