PHP Superglobals Quiz

To store session data

To access global variables from anywhere in the script

To manage uploaded files

To handle cookies

$_COOKIE

$_SESSION

$_SERVER

$_FILES

$_POST sends data via URL; $_GET sends data via body

$_POST hides form data; $_GET appends data to the URL

$_POST is slower than $_GET

$_POST can only send numeric data; $_GET sends text

$_GET

$_POST

$_REQUEST

$_SESSION

Using $_POST

Using $GLOBALS

Using $_SERVER

Using $_SESSION

Session data

Server environment variables

Uploaded file information

URL parameters

$_SESSION

$_COOKIE

$_REQUEST

$_ENV

Using $_ENV

Using $_SERVER

Using $_SESSION

Using $_COOKIE

Yes, always accessible

No, must call session_start() first

Only in command-line scripts

Only when cookies are enabled

Returns the server's IP address

Returns the Host header, usually the domain name of the request

Returns the script file name

Returns the browser type