magento 设置全局变量 (Session 和 Registry)

1. Magento: Get and set variables in session

 

To set a Magento session variable:

$myValue = 'Hello World';Mage::getSingleton('core/session')->setMyValue($myValue);

 

To Retrieve:

$myValue = '';$myValue=Mage::getSingleton('core/session')->getMyValue();

 

To Unset:

Mage::getSingleton('core/session')->unsMyValue();

 

或者

/* Core Session */ Mage::getSingleton('core/session')->setYourVariable('data');$Data = Mage::getSingleton('core/session')->getYourVariable(); /* Customer Session */ Mage::getSingleton('customer/session')->setYourVariable('data');$Data = Mage::getSingleton('customer/session')->getYourVariable(); /* Admin Session */ Mage::getSingleton('admin/session')->setYourVariable('data');$Data = Mage::getSingleton('admin/session')->getYourVariable();

 

2. Magento’s Registry Pattern

 

The three registry methods are

Mage::registerMage::unregister   Mage::registry

 

The register method is how you set a global-like variable.

Mage::register('some_name', $var);

 

Then, later in the request execution, (from any method), you can fetch your variable back out

$my_var = Mage::registry('some_name');

 

Finally, if you want to make you variable unavailable, you can use theunregister method to remove it from the registry.

Mage::unregister('some_name');