PHP 导出excel合并相同数据单元格

//把要导出的数据相同的分组组成一个三维数组
$expTableData  //准备的导出数据
$res = array();
foreach($expTableData as &$val){
   $res[$val]['分组key'][] = $val;
}

//计算单元格合并的长度

foreach (array_values($res) as $k=>$v) {
    if ($k == 0) {
        $num1 = 3;
        $num2 = $num1+count($v)-1;
    }else {
        $num1 = $num2+1;
        $num2 = $num1+count($v)-1;
    }
    echo $num1.'-'.$num2;
    $objActSheet->mergeCells('A'.$num1.':A'.$num2);//合并单元格
    $objActSheet->mergeCells('B'.$num1.':B'.$num2);//合并单元格
    $objActSheet->mergeCells('C'.$num1.':C'.$num2);//合并单元格
    $objActSheet->mergeCells('D'.$num1.':D'.$num2);//合并单元格
}

完整代码

public function exportExcel_1($expTitle, $expCellName, $expTableData, $expColor = [], $fixed = 0, $title = null, $othTitle = [])
{
    // $expTitle = iconv('utf-8', 'gb2312', $expTitle);//文件名称
    $fileName = $expTitle.date('_YmdHis');//or $xlsTitle 文件名称可根据自己情况设定
    $cellNum = count($expCellName);
    $dataNum = count($expTableData);
    vendor('PHPExcel.PHPExcel');
    $objPHPExcel = new \PHPExcel();
    $cellName = 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');
    // echo $cellNum . '==' . $dataNum;die;
    /* 设置当前的sheet */
    $objActSheetIndex = $objPHPExcel->setActiveSheetIndex(0);

    $objActSheet = $objPHPExcel->getActiveSheet(0);
    /* sheet标题 */
    $objActSheet->setTitle($expTitle);

    $ascii = 65;
    $cv = '';
    if ($title) {
        $objActSheetIndex->setCellValue('A1', $expTitle);
    } else {
        $objActSheetIndex->setCellValue('A1', $expTitle.'  Export time:'.date('Y-m-d H:i:s'));
    }
    $i = 2;
    if ($othTitle) {
        foreach($othTitle as $val) {
            $ascii = 65;
            foreach ($val as $k=>$one) {
                $objActSheet->setCellValue($cv.chr($ascii). $i, $one);
                if ($k == 1) {
                    $objActSheet->mergeCells($cv.chr($ascii).$i.':'.$cellName[$cellNum-1]. $i);
                }
                $ascii++;
                if($ascii == 91){
                    $ascii = 65;
                    $cv .= chr(strlen($cv)+65);
                }
            }

            $i++;
        }
    }

    $ascii = 65;
    foreach($expCellName as $key => $field){
        $objActSheet->setCellValue($cv.chr($ascii). $i, $field[1]);
        $ascii++;
        if($ascii == 91){
            $ascii = 65;
            $cv .= chr(strlen($cv)+65);
        }
    }
    $ascii = 65;
    $cv = '';
    $i ++;
    $width = [];
    $res = array();
    foreach($expTableData as &$val){
        $res[$val['xzbIds']][]= $val;
        foreach($expCellName as $field){
            // if ($fixed) {
            //     $tmpLen = mb_strlen($field[1]);
            //     if ($tmpLen > 20 ) {var_dump($field);die;
            //        // $objActSheet->getColumnDimension($cv.chr($ascii))->setAutoSize(true);
            //        $objActSheet->getColumnDimension($cv.chr($ascii))->setWidth(mb_strlen($field[1]));
            //        if (isset($width[$cv.chr($ascii)])) {
            //           $width[$cv.chr($ascii)] = $width[$cv.chr($ascii)] > $tmpLen ? $width[$cv.chr($ascii)] : $tmpLen;
            //        } else {
            //           $width[$cv.chr($ascii)] =  $tmpLen;
            //        }
            //     } else {
            //        $objActSheet->getColumnDimension($cv.chr($ascii))->setWidth('15');
            //     }
            // } else {
            //     $objActSheet->getColumnDimension($cv.chr($ascii))->setWidth('15');
            // }

            $objActSheet->getColumnDimension($cv.chr($ascii))->setWidth('15');
            if(isset($field[2])) {
                switch ($field[2]) {
                    //防止使用科学计数法，在数据前加空格
                    case 'longNumber':
                        $objActSheet->setCellValue($cv.chr($ascii).$i, ' '.$val[$field[0]]);
                        break;
                    case 'datetime':
                        $objActSheet->setCellValue($cv.chr($ascii).$i, date('Y-m-d',$val[$field[0]]));
                        break;
                    default:
                        $objActSheet->setCellValue($cv.chr($ascii).$i, $val[$field[0]]);
                        break;
                }
            } else {
                $objActSheet->setCellValue($cv.chr($ascii).$i, $val[$field[0]]);
            }
            $ascii++;
            if($ascii == 91){
                $ascii = 65;
                $cv .= chr(strlen($cv)+65);
            }
        }
        $ascii = 65;
        $cv = '';
        $i++;
    }
    $num2 = 0;
    foreach (array_values($res) as $k=>$v) {
        if ($k == 0) {
            $num1 = 3;
            $num2 = $num1+count($v)-1;
        }else {
            $num1 = $num2+1;
            $num2 = $num1+count($v)-1;
        }
        echo $num1.'-'.$num2;
        $objActSheet->mergeCells('A'.$num1.':A'.$num2);//合并单元格
        $objActSheet->mergeCells('B'.$num1.':B'.$num2);//合并单元格
        $objActSheet->mergeCells('C'.$num1.':C'.$num2);//合并单元格
        $objActSheet->mergeCells('D'.$num1.':D'.$num2);//合并单元格
    }
    /* 生成到浏览器，提供下载 */
    ob_end_clean();  //清空缓存
    header("Pragma: public");
    header("Expires: 0");
    //header("Cache-Control:must-revalidate,post-check=0,pre-check=0");
    //header("Content-Type:application/force-download");
    //header('Content-type:application/vnd.ms-excel;charset=utf-8');
    header("Content-Type:application/octet-stream");
    //header("Content-Type:application/download");
    $user_agent = $_SERVER['HTTP_USER_AGENT'];
    if(preg_match("/MSIE/", $user_agent) || preg_match("/Trident/", $user_agent)){
        $fileName = str_replace('+','%20',urlencode($fileName));
        header('content-disposition:attachment; filename="'.$fileName.'.xlsx"');
    }else if(preg_match("/Firefox/", $user_agent)){
        header("content-disposition:attachment; filename*=\"utf8''".$fileName.'.xlsx"');
    }else{
        header('content-disposition:attachment; filename="'.$fileName.'.xlsx"');
    }

    //header("Content-Transfer-Encoding:binary");
    //处理表格颜色
    if ($expColor) {
        foreach ($expColor as $one) {
            $tmp = $one['letters'][0] . $one['num'][0] . ':' . $one['letters'][1] . $one['num'][1];
            $tmpColor = $one['color'];
            $objPHPExcel->getActiveSheet()->getStyle($tmp)->getFill()->setFillType(PHPExcel_Style_Fill::FILL_SOLID);
            $objPHPExcel->getActiveSheet()->getStyle($tmp)->getFill()->getStartColor()->setARGB($tmpColor);
        }
    }
    //冻结表头
    if ($fixed) {
        // $objPHPExcel->getActiveSheet()->getStyle()->getFont()->setSize(10);
        //固定表头 $fixed 代表需要固定的行 第一行为2 第二行为3
        $objPHPExcel->getActiveSheet()->freezePane('A' . $fixed);
        $objPHPExcel->getDefaultStyle()->getAlignment()->setHorizontal(PHPExcel_Style_Alignment::HORIZONTAL_CENTER);
        $styleThinBlackBorderOutline = array(
            'borders' => array(
                'allborders' => array( //设置全部边框
                    'style' => \PHPExcel_Style_Border::BORDER_THIN //粗的是thick
                ),

            ),
        );
        $h = 'A2:'. $cellName[$cellNum - 1]. (2 + $dataNum + + count($othTitle));
        $objPHPExcel->getActiveSheet()->getStyle($h)->getAlignment()->setVertical(PHPExcel_Style_Alignment::VERTICAL_CENTER);
        $objPHPExcel->getActiveSheet()->getStyle($h)->applyFromArray($styleThinBlackBorderOutline);
        //设置字体大小
        $objPHPExcel->getActiveSheet()->getStyle($h)->getFont()->setSize(10);
        $objPHPExcel->getActiveSheet()->getStyle('A2:' . $cellName[$cellNum - 1] . 2)->getFont()->setSize(11);
        $objPHPExcel->getActiveSheet()->getStyle($h)->getFont()->setBold(true);
        //表头设置
        $objPHPExcel->getActiveSheet()->getStyle( 'A1')->getFont()->setSize(22);
        $objPHPExcel->getActiveSheet()->getStyle('A1:'. $cellName[$cellNum - 1] . '1')->applyFromArray($styleThinBlackBorderOutline);
        //设置行高
        $objPHPExcel-> getActiveSheet()-> getRowDimension('1')-> setRowHeight(30);

        //设置字体加粗
        $objPHPExcel->getActiveSheet()->getStyle()->getFont()->setBold(true);
        //设置字体
        // $objPHPExcel->getActiveSheet()->getStyle( 'B1')->getFont()->setName('Candara' );
        //自适应宽度
        // $objPHPExcel->getActiveSheet()->getColumnDimension('G')->setAutoSize(true);

    }
    $objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel, 'Excel2007');
    $objWriter->save('php://output');
    exit;
}