php 数据导出到excel 2种带有合并单元格的导出

具体业务层面 可能会有所不同。以下两种方式涉及的合并单元格地方有所不同，不过基本思路是一致的。

第一种是非插件版本。可能更容易理解点，基本思路就是 组装table 然后 读取 输出到excel上。缺点是要设置样式不太好设置。

第二种是利用插件  PHPExcel   有点是可以对输出格式做各种设置。缺点是初次接触这个插件的同学，并且对表格合并不熟悉的同学，可能要花点时间理解

另外注意excel对数字过长会处理成你不想要的数据，记得对该数据格式化成字符串 貌似就可以解决。以前遇到过

    /**
     *
     * execl数据导出
     */
    function exportOrderExcel($title, $cellName, $data) {
        $htmlinfo = "<table  border='1' border-collapse='collapse' cellspacing=0 cellpadding=0>";
        $htmlinfo .= "<tr>";
        foreach($cellName as $v){
            $htmlinfo .= "<td>".$v."</td>";
        }
        $htmlinfo .= "</tr>";
        foreach ($data as $k => $v) {
            foreach ($v['sku'] as $k1 => $v1) {
                $htmlinfo .= "<tr>";
                if ($k1 == 0) {
                    $htmlinfo .= "<td  rowspan='" . count($v["sku"]) . "'>" . date('Y/m/d', strtotime($v['o_addtime'])) . "</td>
                    <td rowspan='" . count($v["sku"]) . "'>" . date('H:i:s', strtotime($v['o_addtime'])) . "</td>
                    <td rowspan='" . count($v['sku']) . "'>" . $v['d_prov'] . $v['d_city'] . "</td>
                    <td rowspan='" . count($v['sku']) . "'>" . $v['g_name'] . "</td>
                    <td rowspan='" . count($v['sku']) . "'>" . $v['epid'] . "</td>
                    <td rowspan='" . count($v['sku']) . "'>" . $v['did'] . "</td>
                    <td rowspan='" . count($v['sku']) . "'>" . $v['deviceid'] . "</td>";
                }
                $htmlinfo .= "<td>" . $v1['cm_gid'] . "</td>
                <td>" . $v1['sku_title'] . "</td>
                <td>" . $v1['skuid'] . "</td>
                <td>" . $v1['sku_num'] . "</td>
                <td>" . sprintf("%.2f", ($v1['sku_activity_price'] * $v1['sku_num'])) . "</td>";
                if ($k1 == 0) {
                    switch ($v['o_fromtype']) {
                        case 1:
                            $o_fromtype = "微信小程序";
                            break;
                        case 2:
                            $o_fromtype = "支付宝小程序";
                            break;
                        case 3:
                            $o_fromtype = "APP";
                            break;
                        default :
                            $o_fromtype = "其他1";
                    }
                    $htmlinfo .= "<td rowspan='" . count($v['sku']) . "'>" . $o_fromtype . "</td>";
                }
                $htmlinfo .= "</tr>";
            }
        }
        $htmlinfo .= "</table>";
        unset($orders);
        $filetime = date("YmdHis");
        $path = $_SERVER['DOCUMENT_ROOT'] . "/Uploads/";
        $fp = @fopen($path . ".html", "wb");
        @fwrite($fp, $htmlinfo);
        unset($htmlinfo);
        @fclose($fp);
        rename($path . ".html", $path . ".xls");

        $file = fopen($path . ".xls", "r");
        header("Content-Type: application/octet-stream");
        header("Accept-Ranges: bytes");
        header("Accept-Length: " . filesize($path . ".xls"));
        header("Content-Disposition: attachment; filename=销售明细_" . $filetime . ".xls");
        echo fread($file, filesize($path . ".xls"));
        fclose($file);
        @unlink($path . ".xls");
        exit;
    }

        /**
     *
     * execl数据导出
     */
    function exportOrderExcel2($title, $cellName, $data) {
        //引入核心文件
        vendor("PHPExcel.PHPExcel");
        $objPHPExcel = new \PHPExcel();
        //定义配置
        $topNumber = 2;//表头有几行占用
        $xlsTitle = iconv('utf-8', 'gb2312', $title);//文件名称
        $fileName = $title.date('_YmdHis');//文件名称
        $cellKey = array(
                'A','B','C','D','E','F','G','H','I','J','K','L','M',
                'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
                'AA','AB','AC','AD','AE','AF','AG','AH','AI','AJ','AK','AL','AM',
                'AN','AO','AP','AQ','AR','AS','AT','AU','AV','AW','AX','AY','AZ'
        );

        $objPHPExcel->getActiveSheet()->getDefaultColumnDimension()->setWidth(20);//所有单元格（列）默认宽度

        //垂直居中
        $objPHPExcel->getDefaultStyle()->getAlignment()->setHorizontal(PHPExcel_Style_Alignment::HORIZONTAL_CENTER);
        $objPHPExcel->getDefaultStyle()->getAlignment()->setVertical(PHPExcel_Style_Alignment::VERTICAL_CENTER);

         //处理表头标题
        $objPHPExcel->getActiveSheet()->mergeCells('A1:'.$cellKey[count($cellName)-1].'1');//合并单元格（如果要拆分单元格是需要先合并再拆分的，否则程序会报错）
        $objPHPExcel->setActiveSheetIndex(0)->setCellValue('A1',$title);
        $objPHPExcel->getActiveSheet()->getStyle('A1')->getFont()->setBold(true);
        $objPHPExcel->getActiveSheet()->getStyle('A1')->getFont()->setSize(18);
        $objPHPExcel->getActiveSheet()->getStyle('A1')->getAlignment()->setHorizontal(PHPExcel_Style_Alignment::HORIZONTAL_CENTER);
        $objPHPExcel->getActiveSheet()->getStyle('A1')->getAlignment()->setVertical(PHPExcel_Style_Alignment::VERTICAL_CENTER);

        //处理表头
        foreach ($cellName as $k=>$v)
        {
            $objPHPExcel->setActiveSheetIndex(0)->setCellValue($cellKey[$k].$topNumber, $v);//设置表头数据
//            $objPHPExcel->getActiveSheet()->freezePane($cellKey[$k].($topNumber+1));//冻结窗口
//            $objPHPExcel->getActiveSheet()->getStyle($cellKey[$k].$topNumber)->getFont()->setBold(true);//设置是否加粗
//            $objPHPExcel->getActiveSheet()->getStyle($cellKey[$k].$topNumber)->getAlignment()->setVertical(PHPExcel_Style_Alignment::VERTICAL_CENTER);//垂直居中
//            if($v[3] > 0)//大于0表示需要设置宽度
//            {
//                $objPHPExcel->getActiveSheet()->getColumnDimension($cellKey[$k])->setWidth($v[3]);//设置列宽度
//            }
        }

        //处理数据
        $start = $topNumber+1;
        $j = $topNumber+1;
        foreach ($data as $k=>$v)
        {
//            $j = $start;
            foreach ($v['sku'] as $k1=>$v1)
            {
                if($k1==0){
                    //计算初步当前单元格标识，以及 需要合并的单元格标识 A B C D E F G M
                    $end = $start+count($v['sku'])-1;
                    $objPHPExcel->getActiveSheet()->mergeCells("A".$start.':'."A".$end);
                    $objPHPExcel->getActiveSheet()->mergeCells("B".$start.':'."B".$end);
                    $objPHPExcel->getActiveSheet()->mergeCells("C".$start.':'."C".$end);
                    $objPHPExcel->getActiveSheet()->mergeCells("D".$start.':'."D".$end);
                    $objPHPExcel->getActiveSheet()->mergeCells("E".$start.':'."E".$end);
                    $objPHPExcel->getActiveSheet()->mergeCells("F".$start.':'."F".$end);
                    $objPHPExcel->getActiveSheet()->mergeCells("G".$start.':'."G".$end);
                    $objPHPExcel->getActiveSheet()->mergeCells("M".$start.':'."M".$end);                    

                    $objPHPExcel->getActiveSheet()->setCellValue("A".$start, $v['o_addtime']);
                    $objPHPExcel->getActiveSheet()->setCellValue("B".$start, $v['d_prov'] . $v['d_city']);
                    $objPHPExcel->getActiveSheet()->setCellValue("C".$start, $v['g_name']);
                    $objPHPExcel->getActiveSheet()->setCellValue("D".$start, $v['epid']);
                    $objPHPExcel->getActiveSheet()->setCellValue("E".$start, $v['did']);
                    $objPHPExcel->getActiveSheet()->setCellValue("F".$start, $v['deviceid']);
                    $objPHPExcel->getActiveSheet()->setCellValue("G".$start, $v['o_addtime']);
                    $objPHPExcel->getActiveSheet()->setCellValue("M".$start, $v['o_fromtype']);
                }

                $objPHPExcel->getActiveSheet()->setCellValue("H".$j, $v1['cm_gid']);
                $objPHPExcel->getActiveSheet()->setCellValue("I".$j, $v1['sku_title']);
                $objPHPExcel->getActiveSheet()->setCellValue("J".$j, $v1['skuid']);
                $objPHPExcel->getActiveSheet()->setCellValue("K".$j, $v1['sku_num']);
                $objPHPExcel->getActiveSheet()->setCellValue("L".$j, sprintf("%.2f",($v1['sku_activity_price']*$v1['sku_num'])));
                $j++;
            }

            $start += count($v['sku']);
        }

        //导出execl
        ob_end_clean();//防止乱码
        header('pragma:public');
        header('Content-type:application/vnd.ms-excel;charset=utf-8;name="'.$xlsTitle.'.xls"');
        header("Content-Disposition:attachment;filename=$fileName.xls");//attachment新窗口打印inline本窗口打印
        $objWriter = \PHPExcel_IOFactory::createWriter($objPHPExcel, 'Excel5');
        $objWriter->save('php://output');
        exit;
    }