How to Add Sort Order For Collection in magento .?

Magento Sort Order of Collection

With a sorted collection you can display list of objects like products in a specific order. The below code will sort the collection in descending order by id.

$collection = Mage::getModel('tutorials/tutorials')
->getCollection()
->setOrder('id', 'DESC');

You can also use product attributes in place of their product id but it is the most recommended way for sorting order for Collection in Magento.