Which two predefined variables are used to retrieve information from forms?

Which of the following variables does PHP use to authenticate a user?

i) $_SERVER['PHP_AUTH_USER']

ii) $_SERVER['PHP_AUTH_USERS']

iii) $_SERVER['PHP_AUTH_PU']

iv) $_SERVER['PHP_AUTH_PW']

Which of the following PHP function is commonly used when handling authentication via PHP?

i) header()

ii) footer()

iii) inset()

iv) isset()

Which directive determines whether PHP scripts on the server can accept file uploads?

What is the default value of max_input_time directive?

Since which version of PHP was the directive max_file_limit available.

Which one of the following functions will convert a string to all uppercase?

Say we have two compare two strings which of the following function/functions can you use?

i) strcmp()

ii) strcasecmp()

iii) strspn()

iv) strcspn()

If you want to temporarily store uploaded files in the /tmp/phpuploads/ directory, which one of the following statement will you use?

Which one of the following databases has PHP supported almost since the beginning?