Controller\Admin\Card::export PHP Method

    public function export()
    {
        $cards = MCard::queryAll(1);
        $file_name = '卡号列表_' . time() . '.csv';
        $data = '#ID,卡号,类型,参数（套餐卡：套餐类型 / 流量卡:流量(GB) / 试用卡:天数 / 余额卡:充值金额(元)）,添加时间,状态' . "\n";
        foreach ($cards as $card) {
            switch ($card->type) {
                case 0:
                    $type = '套餐卡';
                    break;
                case 1:
                    $type = '流量卡';
                    break;
                case 2:
                    $type = '测试卡';
                    break;
                case 3:
                    $type = '余额卡';
                    break;
                default:
                    $type = '-';
                    break;
            }
            $data .= $card->id . ',' . $card->card . ',' . $type . ',' . $card->info . ',' . date('Y-m-d H:i:s', $card->add_time) . ',' . '可用' . "\n";
        }
        header("Content-type:text/csv;charset=utf-8");
        header("Content-Disposition:attachment;filename=" . $file_name);
        header('Cache-Control:must-revalidate,post-check=0,pre-check=0');
        header('Expires:0');
        header('Pragma:public');
        $data = iconv('utf-8', 'gb2312', $data);
        echo $data;
        exit;
    }