Chapter 1 example
Chapter 2 example
Chapter 3 example
Chapter 4 example
Chapter 5 example
Chapter 6 example
Chapter 7 example
Chapter 9 example
Chapter 10 example
Chapter 11 example
Chapter 12 example
Chapter 13 example
PHP playground
Edit the PHP below and click Run — it executes on the server and the output appears on the right.
Click Run to execute your PHP code.