EWZRecaptchaExtension.php

<?php

namespace EWZ\Bundle\RecaptchaBundle\DependencyInjection;

use Symfony\Component\DependencyInjection\ContainerBuilder;
use Symfony\Component\Config\FileLocator;
use Symfony\Component\HttpKernel\DependencyInjection\Extension;
use Symfony\Component\DependencyInjection\Loader;

/**
 * This is the class that loads and manages your bundle configuration
 *
 * To learn more see {@link http://symfony.com/doc/current/cookbook/bundles/extension.html}
 */
class EWZRecaptchaExtension extends Extension
{
    /**
     * {@inheritDoc}
     */
    public function load(array $configs, ContainerBuilder $container)
    {
        $loader = new XmlFileLoader($container, new FileLocator(__DIR__.'/../Resources/config'));
        $loader->load('services.xml');

        $configuration = new Configuration();
        $config = $this->processConfiguration($configuration, $configs);

        $container->setParameter('ewz_recaptcha.public_key', $config['public_key']);
        $container->setParameter('ewz_recaptcha.private_key', $config['private_key']);
        $container->setParameter('ewz_recaptcha.secure', $config['secure']);
        $container->setParameter('ewz_recaptcha.enabled', $config['enabled']);
    }
}