PHP Global Variables - Superglobals

Posted 2024-05-17 08:08:10

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Superglobals were introduced in PHP 4.1.0, and are built-in variables that are always available in all scopes.

PHP Global Variables - Superglobals

Some predefined variables in PHP are "superglobals", which means that they are always accessible, regardless of scope - and you can access them from any function, class or file without having to do anything special.

The PHP superglobal variables are:

$GLOBALS
$_SERVER
$_REQUEST
$_POST
$_GET
$_FILES
$_ENV
$_COOKIE
$_SESSION

The next chapters will explain some of the superglobals, and the rest will be explained in later chapters.

PHP_Global_Variables_-_Superglobals

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