PHPExcel导出表格

public function exportExcel($keyword=''){
   
    //定义一个数组来存查询到的值
    $all_data_list = 查询需要导出的数据。
    //导入插件
    vendor('PHPExcel.Classes.PHPExcel');
    $objExecl = new \PHPExcel();
    $objWriter = \PHPExcel_IOFactory::createWriter($objExecl, 'Excel5');
    ob_end_clean();    //擦除缓冲区
    $file_name = '科目代码基础表'.'.xls';
    $indexKey = $this->indexKey();
    //构造表头字段,添加在list数组之前,组成完整数组
    $all_data_list = $this->addHeadToData($all_data_list);
    $heard_arr = 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');
    //写入数据到表格中
    $objActSheet = $objExecl->getActiveSheet();
    $this->addDataToExcel($all_data_list,$objActSheet,$indexKey,$heard_arr);
    // 下载这个表格，在浏览器输出
    header("Pragma: public");
    header("Expires: 0");
    header("Cache-Control:must-revalidate, post-check=0, pre-check=0");
    header("Content-Type:application/force-download");
    header("Content-Type:application/vnd.ms-execl");
    header("Content-Type:application/octet-stream");
    header("Content-Type:application/download");;
    header('Content-Disposition:attachment;filename='.$file_name.'');
    header("Content-Transfer-Encoding:binary");
    $objWriter->save('php://output');
}

/**
 * 得到需要导出的数据  返回所有数据
 * @param string $year
 * @param string $month
 * @param string $keyword
 * @param $type
 * @return mixed
 */
public function getExportData($keyword=''){

    $logicSub = Loader::model('Subjectcode','logic');
    $resMsg= $logicSub->getSubjectList($keyword);
    return $resMsg;
}

/**
 * 构建表中所有数据
 * @param $data
 */
public function createExcelData($data){
    //导入插件
    vendor('PHPExcel.Classes.PHPExcel');
    $objExecl = new \PHPExcel();
    $objWriter = \PHPExcel_IOFactory::createWriter($objExecl, 'Excel5');
    ob_end_clean();    //擦除缓冲区
    $file_name = time().'.xls';

    $heard =array('subject_code'=>'科目代码','subject_name'=>'科目名称');
    $indexKey = array('subject_code','subject_name');    //$indexKey $list数组中与Excel表格表头$header中每个项目对应的字段的名字(key值)
    array_unshift($data,$heard);
    return $data;
}

/**
 * 返回 对应表中 的字段名
 * @param $type
 * @return array
 */
public function indexKey(){
    $indexKey = array('subject_code','subject_name');    //$indexKey $list数组中与Excel表格表头$header中每个项目对应的字段的名字(key值)
    return $indexKey;
}

/**\
 * 添加表头信息
 * @param $data
 * @param $type
 * @return int
 */
public function addHeadToData($data){
    $heard =array('subject_code'=>'科目代码','subject_name'=>'科目名称');
    array_unshift($data,$heard);
    return $data;
}

public function addDataToExcel($data,$objActSheet,$indexKey,$heard_arr){
    $startRow = 1;
    foreach ($data as $key=>$value){
        foreach ($indexKey as $k=>$v){
            $objActSheet->setCellValue($heard_arr[$k].$startRow,$data[$key][$v]);
            $objActSheet->getStyle($heard_arr[$k].$startRow)->getAlignment()->setHorizontal(\PHPExcel_Style_Alignment::HORIZONTAL_CENTER)->setVertical(\PHPExcel_Style_Alignment::VERTICAL_CENTER);
        }
        $startRow++;
    }
    $objActSheet->getColumnDimension('A')->setWidth(10);
    $objActSheet->getColumnDimension('B')->setWidth(20);
    $objActSheet->getColumnDimension('C')->setWidth(20);
    $objActSheet->getColumnDimension('D')->setWidth(20);
    $objActSheet->getColumnDimension('E')->setWidth(30);
    $objActSheet->getColumnDimension('F')->setWidth(20);
    $objActSheet->getColumnDimension('G')->setWidth(30);
}