Learning PHP & MySQL, 2nd Edition

Appendix A. Solutions to Chapter Questions

Chapter 1

Solution to Question 1-1

A web server, a server-side programming language, and a database.

Solution to Question 1-2

Modules.

Solution to Question 1-3

Structured Query Language.

Solution to Question 1-4

They enclose HTML markup.

Solution to Question 1-5

It processes the HTML and PHP files.

Chapter 2

Solution to Question 2-1

Apache, PHP, and MySQL.

Solution to Question 2-2

Mac OS X and many Linux distributions.

Solution to Question 2-3

The desktop.

Solution to Question 2-4

It indicates lines that are commented out.

Solution to Question 2-5

By not working on your local drive and transferring your files to a server.

Solution to Question 2-6

You can use an FTP program.

Solution to Question 2-7

Through a web server.

Chapter 3

Solution to Question 3-1

Everything renders as text; there is no code.

Solution to Question 3-2

HTML markup.

Solution to Question 3-3

By using two slash (// ) marks or /* */.

Solution to Question 3-4

PHP offers single-line comments, which are indicated by two slash (// ) marks, and multiline comments, which are indicated by an asterisk and slash. Use (/* ) to open a multiline comment and (*/ ) to close it. The third kind of comment comes from HTML, opening with <!-- and closing with -->.

Solution to Question 3-5

A semicolon (;) ends all statements in PHP.

Solution to Question 3-6

A value.

Solution to Question 3-7

By using the following form: $variable_name = value;.

Solution to Question 3-8

Yes.

Solution to Question 3-9

They allow you to group code chunks ...