Get variable inside of a external function

PHP
1

Hi everyone, i am closing my recent problems with some code, this should be the last doubt, thanks for all the helpers in recent doubts that i created.

well, the code is here:

main.php


<?php
    require_once 'functions.php';
    $Var = 1;

    $UserFunctions = new User();
    $UserFunctions->MyVar();
?>

functions.php


class User {

    public function MyVar() {

        if ($Var == 1) {
            echo "Yes";
        }

        else {
            echo "no";
        }
    }
}

well, it give a error on functions.php and say “Undefined variable:Var”

This part is really very important, anyone can give me some help? Thanks community

2 

function MyVar ( $Var ) { ... }

//....

$uf->MyVar( $Var );