<?php
    if (!empty($_GET['name']) && !empty($_GET['code'])){
        $name = $_GET['name'];
        $code = $_GET['code'];
        switch ($code){
            case "sugar":
                echo "success";
            break;
            case "milk":
                echo "incorrect";
            break;
            case "wheat":
                echo "already-verified";
            break;
            default:
                echo "error";
            break;
        }
    } else {
        echo "Error: No URL Variables.";
    }
?>