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7.10 Exercises

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What is the reason that register_globals is disabled by default in PHP?
Which of the following superglobals are not contained inside of $_REQUEST:
- a) $_GET
- b) $_COOKIES
- c) $_FILES
- d) $_POST
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?

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