What are super global variables in php?

Source: Internet
Author: User
What are super global variables in php?

Super global variables in php include:

$ GLOBALS, an array of all global variables (like the global keyword, which allows access to global variables within a function-for example, in the form of $ GLOBALS ['myvariable .)
$ _ SERVER: an array of SERVER environment variables
$ _ GET: the variable array passed to the script through the GET method.
$ _ POST: the variable array passed to the script through the POST method.
$ _ COOKIE, cookie variable array
$ _ FILES: array of variables related to file Upload
$ _ ENV: environment variable array
$ _ REQUEST, an array of all input variables, including $ _ GET, $ _ POST, and $ _ COOKIE.
$ _ SESSION, which is an array of SESSION variables.

Global variables, which are php

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