How to get website id using Order Object in Magento

Question

I want to get the website id using a Sales/Order object in Magento.

I tried the code below. But it is not working.

$order = Mage::getModel('sales/order')->getCollection();
foreach($order as $o){
  //Here i want to get store id and website id 
  echo $o->getStoreName();
  echo $o->getStoreId();
  echo $o->getWebsiteId();

}

Store id works as expected. But the website id is reported as null.

Please suggest any other way, which works.

Answer 1

Mage::getModel('core/store')->load($o->getStoreId())->getWebsiteId()

The above code should get the website id of the store that your order was placed in.