HnS API Stuff

$ref = (isset($_SERVER['HTTP_REFERER']))?$_SERVER['HTTP_REFERER']:'';
if (isset($ref) && !empty($ref) && isset($_GET['apikey']) && !empty($_GET['apikey'])) {
    include "api_auth.php";
    foreach($auth as $key => $referer) {
        if ($_GET['apikey'] == $key && strpos($ref,$referer) !== false) { header('Access-Control-Allow-Origin: *'); break; }
    }
}

// OR

header('Access-Control-Allow-Origin: *');
$ref = (isset($_SERVER['HTTP_REFERER']))?$_SERVER['HTTP_REFERER']:'';
if (isset($ref) && !empty($ref) && isset($_GET['apikey']) && !empty($_GET['apikey'])) {
    $allow = false;
    $auth = array(
        "hnsapi"=>"agerst.webs.com",
        "hnsapi"=>"localhost"
    );
    foreach($auth as $key => $referer) {
        if ($_GET['apikey'] == $key && strpos($ref,$referer) !== false) { $allow = true; break; }
    }
    if (!$allow) die('Bad API Key!');
}