<?php require_once 'GumballMachine.php'; $gumballMachine = new GumballMachine(5); $gumballMachine->toString(); $gumballMachine->insertQuarter(); $gumballMachine->turnCrank(); $gumballMachine->toString(); $gumballMachine->insertQuarter(); $gumballMachine->turnCrank(); $gumballMachine->insertQuarter(); $gumballMachine->turnCrank(); $gumballMachine->toString();