Extbase: ArrayValueViewHelper

<?php
namespace VENDOR\Exttitle\ViewHelpers;
/*                                                                        *
 * This script belongs to the FLOW3 package "Fluid".                      *
 *                                                                        *
 * It is free software; you can redistribute it and/or modify it under    *
 * the terms of the GNU Lesser General Public License as published by the *
 * Free Software Foundation, either version 3 of the License, or (at your *
 * option) any later version.                                             *
 *                                                                        *
 * This script is distributed in the hope that it will be useful, but     *
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHAN-    *
 * TABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser       *
 * General Public License for more details.                               *
 *                                                                        *
 * You should have received a copy of the GNU Lesser General Public       *
 * License along with the script.                                         *
 * If not, see http://www.gnu.org/licenses/lgpl.html                      *
 *                                                                        *
 * The TYPO3 project - inspiring people to share!                         *
 *                                                                        */

/**
 */
class ArrayValueViewHelper extends \TYPO3\CMS\Fluid\Core\ViewHelper\AbstractViewHelper {
	/**
	 * @param array $array
	 * @param mixed $key
	 * @return mixed
	 */
	public function render($array = null, $key = "") {
	  if ($array === null) {
	    $array = $this->renderChildren();
	  }
	  if (!(is_array($array) && $key)) {
	    return "";
	  }
	  
	  return $array[$key];
	}
}
?>