function processRequest() {

// we can directly reference $_SESSION, $_REQUEST and defined vars set by config;

global $con; // give access to open db connection object

$this->sesstoken = fct_session_token(); // from $_SESSION['token'] (may be gen'd new just now)

$email = (isset($_POST) && isset($_POST['email'])) ? $_POST['email'] : '';

$email = strtolower(urldecode($email));

$existing_user = $con->recordselect("SELECT * FROM `prelaunch_signup` WHERE emailAddress='".$email."'");

if(mysql_num_rows($existing_user)>0) {

return "That email address is already signed up.";

} else {

// new pre-launch signup

$accessIp=get_ip_address1();

if (isset($_SESSION['plc'])) {

// new user has arrived on a referral link containing prelaunch_user created timestamp

$con->insert("INSERT INTO `prelaunch_signup`

(`emailAddress`, `created`, `ipaddress`, `referrerCreated`)

VALUES ('$email', ".time().", '".$accessIp."', '".$_SESSION['plc']."') ");

} else if (isset($_SESSION['ruid'])) {

// new user has arrived on a referral link containing a registered user's id

$referrer = $con->recordselect("SELECT * FROM `users` WHERE `userId` = '".$_SESSION['ruid']."' ");

if (mysql_num_rows($referrer) >= 1) {

// Use registered user's "created" timestamp as referrerCreated

// ... to add a little confusion to understand which "create" we are talking about

$con->insert("INSERT INTO `prelaunch_signup`

(`emailAddress`, `created`, `ipaddress`, `referrerCreated`)

VALUES ('$email', ".time().", '".$accessIp."', '".$referrer['created']."') ");

} else {

// strange ... cannot located registered user by id

wrtlog("DEBUG: could not locate registered user by userId=".$_SESSION['ruid']." from session['ruid'] ");

}

} else {

$con->insert("INSERT INTO `prelaunch_signup` (`emailAddress`, `created`, `ipaddress`)

VALUES ('$email', ".time().", '".$accessIp."') ");

}

return "Thank you! We will notify you as soon as we open for business.";

}

}