PHP Global Variable

PHP Global Variable, In this tutorial gives you an idea about accessing global variables, it provides two ways to access global variable one is global keyword and $GLOBALS associative array.

PHP Global Variable, In this tutorial gives you an idea about accessing global variables, it provides two ways to access global variable one is global keyword and $GLOBALS associative array.

PHP Global Variable

To access global variable in PHP we need to use global keyword or $GLOBALS associative array

global is a keyword which helps us to access the globally declared variable. There is no limit to use global keyword within a program.

$GLOBALS is an associative array containing references to all global variables, the variable names are the keys of the array.

Code for PHP Global Variable:

<?php

$a=1;

function globe()

{

$a="12";

echo "Value of a is:".$a;

echo "<br />";