Slim 2 Render Direct HTML - php

Question

I have an old project I'm working on using Slim version 2. I can not upgrade to 3.
I'm trying to integrate twig into slim 2 while also keeping the old default slim2 renderer.
Currently I have this.
class TwigView extends \Slim\View
{
public function rendertwig($template,$data = array()){
global $twig;
$twigResults = $twig->render($template,array('test' => '1'));
$data = array_merge($this->data->all(), $data);
return $this->render($twigResults, $data);
}
}
$view = new TwigView();
$config['view'] = $view; //#JA - This command overides the default render method.
//#JA - Intialize Slim
$app = new \Slim\Slim($config);
The idea is that I would call this saying $app->view->rendertwig('file.twig') when I need to render the twig templates and use $app->render('template.php') for all the other templates that use the default slim2 method of templating.
However, I get an error because in my rendertwig function $this->render() function requires a template name for the first parameter. Is there a way I can render directly the results from twig into the slim engine without needing a template file?
I'm aware this is bad form to have two templating engines but eventually I will switch everything to Twig but I need this as a temporary solution till I can patch everything over.
When I inspected slim's view object it has this defined as its render method which will explain the issue.
protected function render($template, $data = null)
{
$templatePathname = $this->getTemplatePathname($template);
if (!is_file($templatePathname)) {
throw new \RuntimeException("View cannot render `$template` because the template does not exist");
}
$data = array_merge($this->data->all(), (array) $data);
extract($data);
ob_start();
require $templatePathname;
return ob_get_clean();
}

Answer 1

I don't know if this is bad form but I did this as a temporary solution.
class TwigView extends \Slim\View
{
public function rendertwig($template,$data = array()){
global $twig;
$twigResults = $twig->render($template,array('test' => '1'));
echo $twigResults;
}
}
I saw that all the render method did was just require the template so I figured its safe to just echo the results from the twig templating engine? This seemed to work from my test.