Insert, update and delete events on a web page calendar (blank calendar on web page) using mysql and php

[purushottam]

I am having one database with one table to store calendar event details. I want to perform create event, update event and delete event operations on calendar (web page). Image also can be added optionally along with the event details. The expired events are to be shown in red and upcoming with green. I am not getting from where to start. Can you please just let me know the outline or some guidelines for achieving the same?