public function getSiteEnvironmentsAction()
    {
        $json = array();
        $siteId = (int) $this->params()->fromQuery('siteId');
        
        $domainTable = $this->getServiceLocator()->get('MelisCoreTablePlatform');
        $domainData = $domainTable->fetchAll();
        $domainData = $domainData->toArray();
        
        if($domainData) {
            foreach($domainData as $domainValues) {
                $json[] = $domainValues['plf_name'];
            }
        }
        
        return new JsonModel(array('data' => $json));
    }