php 24 post switch case

1<?php
2  if (isset($_POST[beermoney])){$i = $_POST[beermoney]};
3switch ($i) {
4    case 0:
5        echo "get a job";
6        break;
7    case 1:
8        echo "buy draft beer";
9        break;
10    case 2:
11        echo "drink budwieser";
12        break;
13}
14?>