There are several really useful super globals in PHP. They are as follows:
$GLOBALS
$_SERVER
$_GET
$_POST
$_FILES
$_COOKIE
$_SESSION
$_REQUEST
$_ENV
In this lesson we shall take a look at the first of these: $GLOBALS.
As you may be aware, you can use variables within a function as follows:
The variables are only accessible from within the function and cannot be used outside of it. For example, the following would not work:
We can can the super global variables $GLOBALS to access variables outside of the scope of the function as follows:
We can also use variables from outside the scope of the function as follows:
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