如何使用 Magento_Payment_Block_Info 捕获结帐页面上的 POST?
class Ks_Gippayment_Block_Info extends Mage_Payment_Block_Info
{
protected function _construct()
{
    parent::_construct();
    $this->setTemplate('ks/info.phtml');
}
public function getSomePostData()
{
    //****direct get POST/GET data from onepage checkout
}