(本地开发环境下进行： CI 3.x + PHPExcel 1.8)

1、下载 PHPExcel 1.8

下载地址：https://archive.codeplex.com/?p=phpexcel

2、解压，拷贝有效文件及文件夹

2-1、将解压后的文件夹里的Classes文件夹里面的所有文件和文件夹放到application\libraries\目录下，目录结构如下：

application\libraries\PHPExcel.php
application\libraries\PHPExcel\

2-2、修改application\libraries\PHPExcel\IOFactory.php 文件

1）将其类名从PHPExcel_IOFactory改为IOFactory，遵从CI类命名规则
2）将其构造函数改为public

3、代码整合范例

3-1、导出

先看下效果截图：

phpexcel_export.png

控制器代码：

public function ExcelExport(){
    $this->load->library('PHPExcel');
    $this->load->library('PHPExcel/IOFactory');

    $objPHPExcel = new PHPExcel();
    // 设置sheet标签
    $objPHPExcel->setActiveSheetIndex(0);
    // 设置sheet的name
    $objPHPExcel->getActiveSheet()->setTitle('测试sheet');

    // 合并单元格
    $objPHPExcel->getActiveSheet()->mergeCells('A1:E1');
    // 设置行高
    $objPHPExcel->getActiveSheet()->getRowDimension('1')->setRowHeight(40);

    // 自动行高
    $objPHPExcel->getActiveSheet()->getDefaultRowDimension()->setRowHeight(-1);

    // 设置水平居中
    $objPHPExcel->getActiveSheet()->getStyle('A1')->getAlignment()->setHorizontal(PHPExcel_Style_Alignment::HORIZONTAL_CENTER);
    //设置垂直居中
    $objPHPExcel->getActiveSheet()->getStyle('A1')->getAlignment()->setVertical(PHPExcel_Style_Alignment::VERTICAL_CENTER);

    // 设置加粗
    $objPHPExcel->getActiveSheet()->getStyle('A1')->getFont()->setBold(true);

    //设置当前的sheet
    $objPHPExcel->getActiveSheet()->setCellValue('A1', '导出测试excel样式及内容');
    $objPHPExcel->getActiveSheet()->setCellValue('A2', 'IMG');
    $objPHPExcel->getActiveSheet()->setCellValue('B2', '项目');
    $objPHPExcel->getActiveSheet()->setCellValue('C2', '结果');
    $objPHPExcel->getActiveSheet()->setCellValue('D2', '数量');
    $objPHPExcel->getActiveSheet()->setCellValue('E2', '统计');

    $i = 3;
    $m_data = ['12', '5445', '457', '63'];
    foreach($m_data as $key => $value){
        // 设置行高
        $objPHPExcel->getActiveSheet()->getRowDimension($i)->setRowHeight(45);
        $objPHPExcel->getActiveSheet()->getDefaultColumnDimension('A'.$i)->setWidth(8);

        // 图片生成
        $imgPath = PUBLIC_IMG_RESOURCE_PATH . 'default-user.jpg';
        $objDrawing = new PHPExcel_Worksheet_Drawing();
        $objDrawing->setPath($imgPath);
        // 设置宽度高度
        $objDrawing->setHeight(40);//照片高度
        $objDrawing->setWidth(40); //照片宽度
        /*设置图片要插入的单元格*/
        $objDrawing->setCoordinates('A'.$i);
        // 图片偏移距离
        $objDrawing->setOffsetX(10);
        $objDrawing->setOffsetY(10);
        $objDrawing->setWorksheet($objPHPExcel->getActiveSheet());

        $objPHPExcel->getActiveSheet()->setCellValue('B' . $i, $value);
        $objPHPExcel->getActiveSheet()->setCellValue('C' . $i, $value);
        $objPHPExcel->getActiveSheet()->setCellValue('D' . $i, $value);
        $objPHPExcel->getActiveSheet()->setCellValue('E' . $i, '=SUM(B'.$i.':D'.$i.')');
        $i ++;
    }

    $outputFileName = time().".xls";
    $xlsWriter = new PHPExcel_Writer_Excel5($objPHPExcel);
    header("Content-Type: application/force-download");
    header("Content-Type: application/octet-stream");
    header("Content-Type: application/download");
    header('Content-Disposition:inline;filename="'.$outputFileName.'"');
    header("Content-Transfer-Encoding: binary");
    header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");
    header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
    header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
    header("Pragma: no-cache");
    $xlsWriter->save( "php://output" );
}

3-2、导入

控制器代码：

public function ExcelImport(){
    //加载工厂类
    $this->load->library('PHPExcel/IOFactory');

    //要读取的xls文件路径
    $inputFileName = PUBLIC_FILE_RESOURCE_PATH . 'listTest/userListTest.xlsx';

    /** 用PHPExcel_IOFactory的load方法得到excel操作对象  **/
    $objPHPExcel = IOFactory::load($inputFileName);

    //得到当前活动表格，调用toArray方法，得到表格的二维数组
    $sheetData = $objPHPExcel->getActiveSheet()->toArray(null,true,true,true);

    $sheet = $objPHPExcel->getActiveSheet(); // 当前活动表格
    $highestRow = $sheet -> getHighestRow(); // 取得总行数
    $highestColumn = $sheet->getHighestColumn(); // 取得总列数(格式：'AA')
    $columns = PHPExcel_Cell::columnIndexFromString($highestColumn); // 将数据总列数(格式：'AA')转换成数字列数(格式：27)表示

    // 处理转换成可以存入数据库表中的数据
    $newData = [];
    for($currentRow = 2; $currentRow <= $highestRow; $currentRow++){
        $rowData = [];
        foreach($sheetData[1] as $key => $currentColumn){
            $rowData[$currentColumn] = $sheetData[$currentRow][$key]; //$objPHPExcel->getActiveSheet()->getCell($key.$currentRow)->getValue();
        }

        $newData[] = $rowData;
    }

    // 插入数据
    $res = $this->userModel->import_user($newData);

    if(!$res){
        $this->ajax_return('500', 'Import Failed!');
    }
    $this->ajax_return('200', 'Import Success!');
}

至此，CI框架整合PHPExcel完毕。

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