LoyaltyPlus API call sample

api_sample.php

<?
$secret_key = "SECRET_KEY";
$params = array("email" => "CUSTOMER_EMAIL", "uuid" => "ACCOUNT_ID");
ksort($params);
$string_to_hash = $secret_key;
foreach ($params as $key => $val) {
      $string_to_hash .= $key.$val;
}
$params["sig"] = md5($string_to_hash);
$api_url = "http://loyalty.500friends.com/api/enroll.gif?";
foreach ($params as $key => $val) {
     $api_url .= "$key=".urlencode($val)."&";
}
echo $api_url; // Url of the api call.
?>