StringLoader.php

<?php

/*
 * This file is part of Twig.
 *
 * (c) 2012 Fabien Potencier
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
class Twig_Extension_StringLoader extends Twig_Extension {

  /**
   * {@inheritdoc}
   */
  public function getFunctions() {
    return array(
      new Twig_SimpleFunction('template_from_string', 'twig_template_from_string', array(
        'needs_environment' => true,
      )),
    );
  }

  /**
   * {@inheritdoc}
   */
  public function getName() {
    return 'string_loader';
  }

}

/**
 * Loads a template from a string.
 *
 * <pre>
 * {% include template_from_string("Hello {{ name }}") }}
 * </pre>
 *
 * @param Twig_Environment $env      A Twig_Environment instance
 * @param string           $template A template as a string
 *
 * @return Twig_Template A Twig_Template instance
 */
function twig_template_from_string(Twig_Environment $env, $template) {
  static $loader;
  if (null === $loader) {
    $loader = new Twig_Loader_String();
  }
  $current = $env
    ->getLoader();
  $env
    ->setLoader($loader);
  try {
    $template = $env
      ->loadTemplate($template);
  } catch (Exception $e) {
    $env
      ->setLoader($current);
    throw $e;
  }
  $env
    ->setLoader($current);
  return $template;
}