PHP Script Cycle Through Stores

Question

I have a php script I use to update an attribute. I have it set on ADMIN store at the moment, however I need it to update for each store that does not have default values set.

require_once('app/Mage.php');
umask(0);
Mage::app()->setCurrentStore(Mage_Core_Model_App::ADMIN_STORE_ID);

How do I change this to either run for all stores, or get it to cycle through each store?

Answer 1

For anyone finding this and wondering how I resolved code is below

<?php
require_once 'app/Mage.php';
Mage::app();
$storeCollection = Mage::getModel('core/store')->getCollection();
foreach($storeCollection as $store)
{
Mage::app()->setCurrentStore($storeid);
$products_collection = Mage::getModel('catalog/product')->getCollection()
 ->addAttributeToSelect('*')
 ->addStoreFilter($storeid);
foreach($products_collection as $product)
{

As much as it this may not be the most efficient way it did resolve my issue