Get Configurable product attribute options programatically

$attrs  = $product->getTypeInstance(true)->getConfigurableAttributesAsArray($product);
$attributeArr = array();
foreach($attrs as $attr) {
	$attributeArr[$attr['attribute_code']] = array();
	foreach ($attr['values'] as $at) {
		$attributeArr[$attr['attribute_code']][] = array('label'=>$at['label'] , 'value'=>$at['value_index']);
	}
}
var_dump($attributeArr);