Nginx is an event-based web server. Nginx is noted to be a good server for sites that need fast, efficient reverse proxies or fast, efficient serving of static content. It is acclaimed for having low memory usage and is recommended for sites running on a VPS.
Apache is like Microsoft Word, it has a million options but you only need six. Nginx does those six things, and it does five of them 50 times faster than Apache. ~ Chris Lea
This script patches your OpenCart and Nginx configuration so that your OpenCart can run on Nginx with all its native features. The script also checks the system for required configuration for running software like OpenCart on Nginx. You will also find information on how to deal with common problems when installing OpenCart on Nginx.