Code for exporting data and pictures using PHPEXCEL

//CI框架引入PHPExcel
$this->load->library('PHPExcel');//实例化PHPExcel类
$objPHPExcel = new PHPExcel();//图片处理类，这个才是图片导出的关键哦
$objDrawing = new PHPExcel_Worksheet_Drawing();//然后正常设置我们导出图片的代码

$objPHPExcel->createSheet(0);
$objPHPExcel->setActiveSheetIndex(0);
$currentSheet = $objPHPExcel->getActiveSheet();// 水平居中（位置很重要，建议在最初始位置，这里我举例，ABCDEFG,可以按照自己的需求定义！~）

$objPHPExcel->setActiveSheetIndex(0)->getStyle('A')->getAlignment()->setHorizontal(\PHPExcel_Style_Alignment::HORIZONTAL_CENTER);

$objPHPExcel->setActiveSheetIndex(0)->getStyle('B')->getAlignment()->setHorizontal(\PHPExcel_Style_Alignment::HORIZONTAL_CENTER);

$objPHPExcel->setActiveSheetIndex(0)->getStyle('C')->getAlignment()->setHorizontal(\PHPExcel_Style_Alignment::HORIZONTAL_CENTER);

$objPHPExcel->setActiveSheetIndex(0)->getStyle('D')->getAlignment()->setHorizontal(\PHPExcel_Style_Alignment::HORIZONTAL_CENTER);

$objPHPExcel->setActiveSheetIndex(0)->getStyle('E')->getAlignment()->setHorizontal(\PHPExcel_Style_Alignment::HORIZONTAL_CENTER);

$objPHPExcel->setActiveSheetIndex(0)->getStyle('F')->getAlignment()->setHorizontal(\PHPExcel_Style_Alignment::HORIZONTAL_CENTER);

$objPHPExcel->setActiveSheetIndex(0)->getStyle('G')->getAlignment()->setHorizontal(\PHPExcel_Style_Alignment::HORIZONTAL_CENTER);// 设置个表格宽度（这个一定要设置哦，不然图片会大厨单元格的）

$objPHPExcel->getActiveSheet()->getColumnDimension('A')->setWidth(20);
$objPHPExcel->getActiveSheet()->getColumnDimension('B')->setWidth(20);
$objPHPExcel->getActiveSheet()->getColumnDimension('C')->setWidth(20);
$objPHPExcel->getActiveSheet()->getColumnDimension('D')->setWidth(20);
$objPHPExcel->getActiveSheet()->getColumnDimension('E')->setWidth(20);
$objPHPExcel->getActiveSheet()->getColumnDimension('F')->setWidth(20);
$objPHPExcel->getActiveSheet()->getColumnDimension('G')->setWidth(20);//设置第一行标题

$currentSheet->setCellValue('A1', "序列号");
$currentSheet->setCellValue('B1', "设备ID");
$currentSheet->setCellValue('C1', "设备密码");
$currentSheet->setCellValue('D1', "设备编码");
$currentSheet->setCellValue('E1', "二维码");
$currentSheet->setCellValue('F1', "二维码");
$currentSheet->setCellValue('G1', "二维码");//定义变量初始化为2，从第二行开始

$idx          = 2;//开始循环数组数据！~

foreach ($devices as $device) {  //设置数据所在单元格，我这里把图片放在E里
  $currentSheet->setCellValue('A' . $idx, $device['sequence']);
  $currentSheet->setCellValue('B' . $idx, $device['device_unique']);
  $currentSheet->setCellValue('C' . $idx, $device['device_pwd']);
  $currentSheet->setCellValue('D' . $idx, $device['device_code']);  //设置单元格高度，这个是重点哦
  $currentSheet->getRowDimension($idx) -> setRowHeight(60)  //获取图片
  $this->load->model('Device_codes_model');
  $codes = $this->Device_codes_model->getOneCodes($id);  //开始设置图片啦~~
  $objDrawing->setPath($codes['code_file']);  // 设置图片宽度高度
  $objDrawing->setHeight(80);//照片高度
  $objDrawing->setWidth(80); //照片宽度  /*设置图片要插入的单元格*/
  $objDrawing->setCoordinates('E'.$idx);  // 图片偏移距离
  $objDrawing->setOffsetX(12);
  $objDrawing->setOffsetY(12);
  $objDrawing->setWorksheet($objPHPExcel->getActiveSheet());
  $idx++;
}//导出excel到表格

$sheetWrite = PHPExcel_IOFactory::createWriter($objPHPExcel, 'Excel2007');