ReportController::array2Csv PHP Method

    protected function array2Csv(array $data)
    {
        if (count($data) == 0) {
            return;
        }
        ob_start();
        $df = fopen('php://output', 'w');
        fputcsv($df, array_keys(reset($data)));
        foreach ($data as $row) {
            fputcsv($df, $row);
        }
        fclose($df);
        return ob_get_clean();
    }