CodeIgniterCodeigniter+PHPExcel导出数据到Excel文件

解压压缩包里的Classes文件夹中的内容到application\libraries\目录下，目录结构如下：
--application\libraries\PHPExcel.php
--application\libraries\PHPExcel(文件夹)
修改application\libraries\PHPExcel\IOFactory.php文件
--将其类名从PHPExcel_IOFactory改为IOFactory，遵从CI类命名规则。
--将其构造函数改为public

        $this->load->library(‘PHPExcel‘);
        $this->load->library(‘PHPExcel/IOFactory‘);
        $resultPHPExcel = new PHPExcel();
        $resultPHPExcel->getActiveSheet()->setCellValue(‘A1‘, ‘项目‘);
        $resultPHPExcel->getActiveSheet()->setCellValue(‘B1‘, ‘结果‘);
        $resultPHPExcel->getActiveSheet()->setCellValue(‘C1‘, ‘数量‘);
        $i = 2;
        foreach($m_data[‘jc_fia‘] as $key){
            $resultPHPExcel->getActiveSheet()->setCellValue(‘A‘ . $i, $key[0]);
            $resultPHPExcel->getActiveSheet()->setCellValue(‘B‘ . $i, $key[1]);
            $resultPHPExcel->getActiveSheet()->setCellValue(‘C‘ . $i, $key[0]);
            $i ++;
        }
        $outputFileName = "123.xls";
        $xlsWriter = new PHPExcel_Writer_Excel5($resultPHPExcel);
        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" );

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