App\Libraries\Utils::exportData PHP Method

    public static function exportData($output, $data, $headers = false)
    {
        if ($headers) {
            fputcsv($output, $headers);
        } elseif (count($data) > 0) {
            fputcsv($output, array_keys($data[0]));
        }
        foreach ($data as $record) {
            fputcsv($output, $record);
        }
        fwrite($output, "\n");
    }