magento 常用方法

If you're specifically doing this on the checkout success page - in success.phtml - then the code to get the order increment ID is already available in the template, since it is displayed to the customer.

You just need the following:

$orderId = $this->getOrderId();

Note that this won't work on other pages so, for those, you'd need to use:

$orderId = Mage::getSingleton('checkout/session')->getLastRealOrderId();

$this->getRequest() can be used in template (phtml) files.
Here is the code:
/**
 *
 get Controller name
 */
$this->getRequest()->getControllerName();
/**
 *
 get Action name, i.e. the function inside the controller
 */
$this->getRequest()->getActionName();
/**
 *
 get Router name
 */
$this->getRequest()->getRouteName();
/**
 *
 get module name
 */
$this->getRequest()->getModuleName();
IN CLASS FILES
$this might not work in class (php) files. In this case, you need to use Mage::app().
Here is the code:
/**
 *
 get Controller name
 */
Mage::app()->getRequest()->getControllerName();
/**
 *
 get Action name, i.e. the function inside the controller
 */
Mage::app()->getRequest()->getActionName();
/**
 *
 get Router name
 */
Mage::app()->getRequest()->getRouteName();
/**
 *
 get module name
 */
Mage::app()->getRequest()->getModuleName();
The above functions (getControllerName, getActionName, getRouteName, getModuleName) are present in the class Mage_Core_Model_Url.
You can explore all requests with print_r.
echo "<pre>";
    print_r(Mage::app()->getRequest()); 
echo "</pre>";

通过sku获取产品

$product = Mage::getModel('catalog/product')->loadByAttribute('sku',$sku);

  $proData=$_product->getData();
  $proSku=$proData['sku'];
  $relProduct=Mage::getModel("catalog/product")->loadByAttribute('sku',$proSku);
  $zipValue=$relProduct->getResource()->getAttribute('zipin')->getFrontend()->getValue($relProduct);