code: public function renderArray($data, $noDataLabel = 'No Data', $header = null)
      {
          /** @var Mage_Core_Block_Template $block */
          $block = $this->getLayout()->createBlock('sheep_debug/view');
          $block->setTemplate('sheep_debug/view/panel/_array.phtml');
          $block->setData('array', $data);
          $block->setData('no_data_label', $noDataLabel);
          $block->setData('header', $header);
  
          return $block->toHtml();
      }
docs: Iterates an array and prints its keys and values.
  
  @param array  $data
  @param string $noDataLabel
  @param null   $header
  @return string