5 CGI programming

 5.1 Web server
  5.1.1 Idea
  5.1.2 Preliminaries
  5.1.3 Implementation
 5.2 Read GET and POST variables from forms and URLs
  5.2.1 Idea
  5.2.2 Implementation
 5.3 Working with cookies
  5.3.1 Idea
  5.3.2 Preliminaries
  5.3.3 Implementation
 5.4 Webchat with MySQL
  5.4.1 Idea
  5.4.2 MySQL tables used
  5.4.3 Preliminaries
  5.4.4 Implementation I: auxiliary functions and definitions
  5.4.5 Implementation II: main