What is the reason that register_globals is disabled by default in PHP?
Which of the following superglobals are not contained inside of $_REQUEST:
Give one advantage of using POST to send form data, and one advantage of using GET.
Why is the is_numeric() function a better choice for form validation than the is_int() function?
Which PHP function will automatically strip any HTML tags out of a variable?
Why might the CTYPE functions be the preferred method for data validation?
Client-side validation should be avoided at all times: true or false?
Want to learn PHP 7?
Hacking with PHP has been fully updated for PHP 7, and is now available as a downloadable PDF. Get over 1200 pages of hands-on PHP learning today!
If this was helpful, please take a moment to tell others about Hacking with PHP by tweeting about it!
Next chapter: Further reading >>
Previous chapter: Summary
Home: Table of Contents
Copyright ©2015 Paul Hudson. Follow me: @twostraws.