Super Global Varibles in Php

super global varibles are used predefined in built special varibles used to get the value from any scope

1. local scope

2. global scope

3. cleint scope

4. server side scope

There are Two types of super global variable

1. mangled variable

2. unmangled variable

1. mangled variable :_ will be used prefix example

$_POST

$_GET

$_SERVER

$_REQUEST

2. unmangled varible :they donot start from _ as prefix

$GLOBALS

These superglobal variables are:

 

$GLOBALS

$_SERVER

$_GET

$_POST

$_FILES

$_COOKIE

$_SESSION

$_REQUEST

$_ENV

Superglobal = unmangled + mangled

There Context are super means they can be session access any where Post-Mortum of Super Global Varibles

$GLOBALS:

it convert any local varible to super global variable and this varible is formed such that it becomes unmangled varible