in this program why variable c access outside of the function..if i put echo $c within function then give some error.

Question

<?php
$x=50;
$y=20;
function sum()
{
$GLOBALS['c']=$GLOBALS['x']+$GLOBALS['y'];
}
sum();
echo $c;

?>

Answer 1

Your code was good.in your code their was a return so the output is returning to the function.if you want to print with in function than than can be possible.
But in my code if I want to print global variable c with in function than give some error.