public function checkConnection()
{
$connection = false;
$apiURL = "http://{$this->_domain}/affiliates/api/4/offers.asmx/OfferFeed?api_key={$this->_apiPassword}&affiliate_id={$this->_user}&campaign_name=&media_type_category_id=0&vertical_category_id=0&vertical_id=0&offer_status_id=0&tag_id=0&start_at_row=1&row_limit=0";
$response = self::call($apiURL);
if ($response["success"] == "true") {
$connection = true;
}
return $connection;
}