name : ExpressionLanguage.php <?php /* * This file is part of the Symfony package. * * (c) Fabien Potencier <fabien@symfony.com> * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace Symfony\Component\DependencyInjection; use Symfony\Component\ExpressionLanguage\ExpressionLanguage as BaseExpressionLanguage; /** * Adds some function to the default ExpressionLanguage. * * To get a service, use service('request'). * To get a parameter, use parameter('kernel.debug'). * * @author Fabien Potencier <fabien@symfony.com> */ class ExpressionLanguage extends BaseExpressionLanguage { protected function registerFunctions() { parent::registerFunctions(); $this->register('service', function ($arg) { return sprintf('$this->get(%s)', $arg); }, function (array $variables, $value) { return $variables['container']->get($value); }); $this->register('parameter', function ($arg) { return sprintf('$this->getParameter(%s)', $arg); }, function (array $variables, $value) { return $variables['container']->getParameter($value); }); } }