PHP Hyper Global Array

This article mainly introduced the PHP Super Global Array (superglobals) Introduction, this article explained the outline, the variable scope, the Super Global array and the attention matter and so on content, needs the friend to be possible to refer to under

Overview

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Scope of variables

Referring to the hyper-global array of PHP, we cannot help but say the scope of the variable. The scope of a variable is a concept that must be mastered in any programming language. About the variable scope in PHP, there is no more to say here, you can view the data yourself.

Super Global Array

A hyper-global array is a specially defined array variable in PHP, and is called a hyper-global array because the arrays are accessible anywhere in the script, in any scope, such as functions, classes, files, and so on.

The hyper-global array in PHP includes the following:

The code is as follows:

$GLOBALS

$_server

$_get

$_post

$_request

$_cookie

$_session

$_files

$_env

Attention

One thing to note is the difference between global variables and super global arrays in PHP, where global variables are not directly accessible in the class.

Summarize

In the future, we should pay more attention to the basic knowledge and solve the doubts in my heart.