how to get all additional attributes name and value for current product
i wrote below code but its not working
<?php
$_helper = $this->helper('catalog/output');
$_product = $this->getProduct()
?>
<?php if($_additional = $this->getAdditionalData()): ?>
<?php foreach ($_additional as $_data): ?>
<?php echo $_helper->productAttribute($_product, $_data['value'], $_data['code']) ?>
<?php endforeach;?>
<?php endif; echo "ssss";?>