i am stuck on the php script, what am I doing wrong.

true var_dump("1" == "01"); // 1 == 1 -> true var_dump("10" == "1e1"); // 10 == 10 -> true var_dump(100 == "1e2"); // 100 == 100 -> true switch ("a") case 0: echo "0"; break; case "a": // never reached because "a" is already matched with 0 echo "a"; break; ?>