public function getDemographicMapDataAction() { $id = $this->_request->getParam('id', ''); $district_id = $this->_request->getParam('districtId', ''); if ($id != "" && $district_id != "") { $geoModel = new Model_Geo(); $return = $geoModel->getDemographicAssests($id, $district_id); echo Zend_Json::encode($return); } else { $return = array(); $geoModel = new Model_Geo(); $return[0] = $geoModel->getDemographicMapData(); $return[1] = $geoModel->getDemographicDetail(); echo Zend_Json::encode($return); } }