how to make global variable in php

Global variables and "global" keywordsPHP defines some "Superglobals" variables by default. These variables are automatically merged and can bePrograms are called anywhere, such as $ _ GET and $ _ REQUEST. They generally come from data or other

Php $ GLOBALS Super global variable analysis. In php, there is a super global variable $ GLOBALS that is not used by many people. Reasonable use of this variable can make work more efficient. This article mainly analyzes the Super global variable $

PHP has a super global variable $globals that is not used by many people. Reasonable use of this variable can make the work more efficient, this article mainly analyzes the use of this super-global variable and the difference between $globals and

This can cause some problems, and some people may inadvertently change a global variable. Global variables in PHP must be declared as global when used in functions (note that the Global keyword is defined in the function to be useful). The role of 1:

This may cause some problems. Some may carelessly change a global variable. Global variables in PHP must be declared as Global when used in functions (note that the Global keyword is useful in function definition ).1: Global is used to define Global

This may cause some problems. Some may carelessly change a global variable. Global variables in PHP must be declared as Global when used in functions (note that the Global keyword is useful in function definition ). 1: Global is used to define

Recently, when learning Workerman, more frequent contact with the callback function, often in use because of the way the worker is used, the two different ways to invoke the external worker variables, Just tidy up the PHP closure. Gets the

The variables defined by global are global variables, so to speak, if a variable in a function is not a variable in PHP with the same name as the outside of the function, if we use global to define the same variable name in the function, then they

In php, there is a super global variable $ GLOBALS that is not used by many people. Reasonable Use of this variable can make work more efficient. This article mainly analyzes the usage of this super global variable and the difference between $

Each variable in PHP has a scope for it, which is a field in which the variable can be accessed (thereby accessing its value). For starters, variables are scoped to the page where they reside. Therefore, if you define a $var, the rest of the page