sfWidgetFormReCaptcha2.class.php

<?php

class sfWidgetFormReCaptcha2 extends sfWidgetFormReCaptcha
{
  /**
   * @see sfWidgetFormReCaptcha
   */
  public function render($name, $value = null, $attributes = array(), $errors = array())
  {
    $server = $this->getServerUrl();
    $key = $this->getOption('public_key');

    return sprintf('
    <div id="recaptcha_div"></div>

    <script type="text/javascript">
    Recaptcha.create("%s",
      "recaptcha_div", {
         theme: "red",
         callback: Recaptcha.focus_response_field
      });
    </script>
    <noscript>
      <iframe src="%s/noscript?k=%s" height="300" width="500" frameborder="0"></iframe><br />
      <textarea name="recaptcha_challenge_field" rows="3" cols="40"></textarea>
      <input type="hidden" name="recaptcha_response_field" value="manual_challenge" />
    </noscript>
    ', $key, $server, $key);
  }
}