$GLOBALS is a PHP super global variable which is used to access global
variables from anywhere in the PHP script (also from within functions or
methods).
Program for assigning $GLOBAL variable.
<html>
<body>
<?php
$a = 55;
$b = 23;
function sum()
{
$GLOBALS[‘s'] = $GLOBALS[‘a'] + $GLOBALS[‘b'];
}
sum();
echo $s;
?>
</body>
</html>
