What will be the output of the following PHP code?<?php$option2

What will be the output of the following PHP code?

<?php
$option2 = "Hey";
function fun($option1)
    {
        echo $option1;
        echo $option2;
    }
fun("Welcome");
?>

If you want to put some variables in function that was not passed by it, you must use “global”. Inside the function type global $option2.