1.5 Chapter Summary

Chapter 1 covers:

• PHP's usage by a web server to create a response or document to send back to the browser.

• PHP as a server-side language, meaning it runs on the web server. This is in contrast to a client-side language such as JavaScript.

• What you sign up for when you decide to use PHP: it's free (in terms of money and speech), cross-platform, popular, and designed for web programming.

• How PHP programs that print information, process forms, and talk to a database appear.

• Some basics of the structure of PHP programs, such as the PHP start and end tags (<?php and ?>), whitespace, case-sensitivity, and comments.