$arr = Array();
$arr[0] = 5;
$arr[1] = 3;

$cl = get_class($arr);



if($cl == "") print "error: get_class returned nothing";

//  the if statment is true, and error is printed.
//   I tried this on a Linux 2.2 server and $cl = "Array"

// BUT:  If you do this:"
print $arr;
//  "Array" will display in the browser.