function load_stock($product_id) { // database query to get stock quantity for the given product_id return $stock_qty; } // usage: $product_id = 123; $stock_qty = load_stock($product_id); echo "Stock Quantity: " . $stock_qty;
namespace MyApp\Product; class Stock { public function load($product_id) { // database query to get stock quantity for the given product_id return $stock_qty; } } // usage: use MyApp\Product\Stock; $product_id = 456; $stock = new Stock(); $stock_qty = $stock->load($product_id); echo "Stock Quantity: " . $stock_qty;In this example, the load function is encapsulated within a Stock class in the MyApp\Product namespace. This promotes better organization of code and prevents function name conflicts. The function is still used in a similar way, with the addition of the class instantiation and namespace usage. Package/Library determination: The load_stock function does not belong to a specific package or library as it is a simple function that can be implemented in any PHP codebase. However, if used in an ecommerce website, it may be part of a larger package or library for managing products and their inventory.