Section 15.4. Chapter 15 Questions


15.4. Chapter 15 Questions


Question 15-1.

What are the pros and cons of using JavaScript to validate form input?


Question 15-2.

Write the JavaScript code to display the warning "The username field must be at least six characters."


Question 15-3.

Write a regular expression to validate a U.S. zip code, including the optional "zip plus four" style.


Question 15-4.

Write the PHP code to test a variable called $zipcode using the regex expression from Question 15-3.

See the Appendix for the answers to these questions.



Learning PHP and MySQL
Learning PHP and MySQL
ISBN: 0596101104
EAN: 2147483647
Year: N/A
Pages: 135

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