class Twig_Extension_Debug

class Twig_Extension_Debug extends Twig_Extension {

  /**
   * Returns a list of global functions to add to the existing list.
   *
   * @return array An array of global functions
   */
  public function getFunctions() {

    // dump is safe if var_dump is overriden by xdebug
    $isDumpOutputHtmlSafe = extension_loaded('xdebug') && (false === ini_get('xdebug.overload_var_dump') || ini_get('xdebug.overload_var_dump')) && (false === ini_get('html_errors') || ini_get('html_errors'));
    return array(
      'dump' => new Twig_Function_Function('twig_var_dump', array(
        'is_safe' => $isDumpOutputHtmlSafe ? array(
          'html',
        ) : array(),
        'needs_context' => true,
        'needs_environment' => true,
      )),
    );
  }

  /**
   * Returns the name of the extension.
   *
   * @return string The extension name
   */
  public function getName() {
    return 'debug';
  }

}