Document::getElementsByAttr

public function getElementsByAttr($attrName, $attrValue = null, $limit = 0)
{
	$attrName = mb_strtolower($attrName);
	$nodeList = $this->getQueryEngine()->walk(
		array(
			array(
				QueryEngine::FILTER_ATTR_VALUE => array(
					array(
						'name' => $attrName,
						'value' => $attrValue,
						'operation' => QueryEngine::FILTER_OPERATION_EQUAL,
					)
				)
			)
		),
		null, $this, $limit
	);

	if(Node::$isNodeListAsArray)
	{
		return $nodeList;
	}
	else
	{
		return new NodeList($nodeList);
	}
}