<?php
$type = 'box';
switch ($type){
	case 'box':
		$postage = 2.5;
		break;
	case 'package':
		$postage = 1.5;
		break;
	case 'firstClass':
		$postage = 50;
		break;
	default:
		$postage = 0.25;
}
echo $postage;
?>

2.5