LazyRecord\Exporter\CSVExporter::exportQuery PHP Метод

    public function exportQuery(PDOStatement $stm, array $intersectKeys = null)
    {
        $all = $stm->fetchAll(PDO::FETCH_ASSOC);
        if (empty($all)) {
            return false;
        }
        $columns = array_keys($all[0]);
        if ($intersectKeys) {
            $columns = array_intersect_key($columns, array_flip($intersectKeys));
        }
        $php54 = version_compare(phpversion(), '5.5.0') < 0;
        if ($php54) {
            fputcsv($this->fd, $columns, $this->delimiter, $this->enclosure);
        } else {
            fputcsv($this->fd, $columns, $this->delimiter, $this->enclosure, $this->escapeChar);
        }
        foreach ($all as $row) {
            $fields = [];
            foreach ($keys as $key) {
                $fields[] = $row[$key];
            }
            if ($php54) {
                fputcsv($this->fd, $fields, $this->delimiter, $this->enclosure);
            } else {
                fputcsv($this->fd, $fields, $this->delimiter, $this->enclosure, $this->escapeChar);
            }
        }
        return true;
    }