phpShop is a free PHP-based e-commerce application developed by Edikon . phpShop allows you to setup an online store and manage all aspects of your online business by using a web browser. The main features of phpShop are:

GPL-based open source.
Stable platform for further development using web-box architecture.
Uses MySQL backend database.
Provide user authentication and store management functions.
You can view a full list of features.

phpShop was designed as a tool to offer easy customization and a standardized platform for development of e-commerce applications. Its use of open source technoligies allows for cross platform deployment using any operating system that support PHP. phpShop is distributed under the General Public License (GPL).