total sales of each product in magento [closed]

Answer 1

As Alan pointed out there's a number of different ways to qualify sales for a product.

But to get you started an easy way is to use the reporting module.

/** @var Mage_Report_Model_Mysql4_Product_Sold_Collection **/
$report = Mage::getResourceModel('report/product_sold_collection');

You can set a date range or other criteria if you want. Once you have your collection just iterate over it, something like this:

foreach ($report AS $product) {
    echo $product->getOrderedQty();
}

There are other ways to do this too, but this should be a starting point.