Let's say for example I create a new instance of Zipcode and then loop through those results by doing:
$zip = new Zipcode("98674");
foreach ($zip->getZipsInRange(0, 15) as $k => $v) {
$zip_codes[] = sprintf($v);
//print_r($v);
}
The original zip code being searched of 98674 isn't returned with the results.