Superglobals are specially-defined array variables in PHP that make it easy for you to get information about a request or its context. They are called superglobal because they are always accessible, regardless of the scope â that is, you can access them from any function, class or file without having to do anything special. The superglobal variables are: $GLOBALS , $_SERVER , $_GET , $_POST , $_FILES , $_COOKIE , $_SESSION , $_REQUEST and $_ENV .
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Superglobals are specially-defined array variables in PHP that make it easy for you to get information about a request or its context. They are called superglobal because they are always accessible, regardless of the scope â that is, you can access them from any function, class or file without having to do anything special. The superglobal variables are: $GLOBALS , $_SERVER , $_GET , $_POST , $_FILES , $_COOKIE , $_SESSION , $_REQUEST and $_ENV . 