How to use $GLOBALS variable in php to access global variables
Access global variable in php via any function/class using $GLOBALS inside, outside of scope.
Php $GLOBALS variable is used to retrieve any already declared global variable because inside php scripting programming language there are all global variables defines in $GLOBALS[index] form, So if you define any global variable in php then it will automatically set into index value and can be call through $GLOBALS[index_value] . So here is the complete step by step tutorial for How to use $GLOBALS variable in php to access global variables.
How to use $GLOBALS variable in php to access global variables.
Code for globals-variables.php file.
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>$GLOBALS variable in php to access global variables</title>
</head>
<body>
<?php
$a = 20;
$b = 30;
function sum()
{
//ACCESSING VARIABLES USING GLOBALS
$GLOBALS['c'] = $GLOBALS['a'] + $GLOBALS['b'];
}
sum();
echo $c;
?>
</body>
</html>
Screenshot:
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