.. _Nng\Nnhelpers\ViewHelpers\AbstractViewHelper:

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abstract
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Description
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<nnt3:abstract />
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

This ViewHelper is not a separate ViewHelper that can be used in Fluid.

It serves as a base class for your own ViewHelper.

| ``$escapeOutput = false`` is set as the default.
If XSS attacks could be a problem with your ViewHelper, this should be overwritten.

Use ``extend`` in your own ViewHelper to use it.
Here is an example boilerplate with everything you need to get started:

.. code-block:: php

	registerArgument('title', 'string', 'info', false);
	 }
	
	 public static function renderStatic( array $arguments, \Closure $renderChildrenClosure, RenderingContextInterface $renderingContext ) {
	
	     // Simply 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 current variables in the Fluid template
	     // $templateVars = \nn\t3::Template()->getVariables( $renderingContext );
	
	     return $title;
	 }
	}