<nnt3:abstract />

This ViewHelper is not a custom ViewHelper usable in Fluid.

It serves as a base class for your own ViewHelper.

$escapeOutput = false is set as default.

If XSS attacks could be a problem with your ViewHelper, this should be üoverridden.

Use extend in your own ViewHelper to use it. Here's a sample boilerplate, with everything you need to get started:

namespace My\ExtViewHelpers;

use Nng\Nnhelpers\ViewHelpers\AbstractViewHelper;
use TYPO3Fluid\Core\Rendering\RenderingContextInterface;

class ExampleViewHelper extends AbstractTagBasedViewHelper {

 public function initializeArguments() {
     $this->registerArgument('title', 'string', 'info', false);

 public static function renderStatic( array $arguments, \Closure $renderChildrenClosure, RenderingContextInterface $renderingContext ) {

     // Just use `$title` instead of `$arguments['title']`.
     foreach ($arguments as $k=>$v) {
        ${$k} = $v;

     // Render content between the ViewHelper tag
     if (!$title) $title = $renderChildrenClosure();

     // Example to get all actual variables in the fluid template
     // $templateVars = \nn\t3::Template()->getVariables( $renderingContext );

     return $title;