$opt = array(PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION, PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC);
switch ($data->operation) {
    case "createProject":
        ProjectController::saveProject(null, $data->data);
        break;
    case "searchProject":
        ProjectController::searchProject($data->searchBy, $data->searchKeyword);
        break;
    case "modifyProject":
        ProjectController::updateProject($data->data->projectDetails->projectId, $data->data);
        break;
    case "getCompaniesForProject":
        ProjectController::getCompaniesForProject($data->data);
        break;
    case "getExcludedCompaniesForProject":
        ProjectController::getExcludedCompaniesForProject($data->data);
        break;
    case "closeProject":
        echo json_encode(ProjectController::closeProject($data->data));
        break;
    case "getCompaniesForProject":
        ProjectController::getCompaniesForProject($data->data);
        break;
    case "getProjectList":
        ProjectController::getProjectList();
        break;
    case "getSiteTrackingProjectList":
        ProjectController::getSiteTrackingProjectList();
        break;
    case "getInvoiceOfProject":
        ProjectController::getInvoicesByProject($data->projectId);