Description:
------------
a switch on a String variable go in the first case if the Variable 0. if the variable "0" its right and he goes in default!

Reproduce code:
---------------
$fish = 0;
switch($fish) {
		case "one":
			echo "one";
			break;
		case "two":
			echo "two";
			break;
		default:
			echo "default";
			break;
}

Expected result:
----------------
default

Actual result:
--------------
one