How many predefined variables does PHP use to authenticate a user?
A. 1
B. 2
C. 3
D. 4
Answer: Option B
Related Questions on HTML Forms Handling
Which two predefined variables are used to retrieve information from forms?
A. $GET & $POST
B. $_GET & $_POST
C. $__GET & $__POST
D. GET & POST
A. basic sql injection
B. advanced sql injection
C. cross-site scripting
D. scripting
When you use the $_GET variable to collect data, the data is visible to.
A. none
B. only you
C. everyone
D. selected few
When you use the $_POST variable to collect data, the data is visible to.
A. none
B. only you
C. everyone
D. selected few
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