Section 17.5. Chapter 17 Questions

17.5. Chapter 17 Questions

Question 17-1.

Why not use <? and ?> to start and end your PHP code blocks?

Question 17-2.

What's the difference between using // comments and /* */ comments?

Question 17-3.

What's the advantage of using the include_once() and require_once() directives instead of include() and require()?

Question 17-4.

What's wrong with this code?

 <? if ($_GET[user_id] == 'Admin') echo ('Welcome to the control panel.'); else echo ('Welcome.'); ?> 

See the Appendix for the answers to these questions.