PHP 导出Excel表格

    public function pushExcelAll(Request $request)
    {
        vendor('phpexcel.PHPExcel'); //引入核心库文件 
	    vendor('phpexcel.PHPExcel.Writer.Excel2007'); //引入excel2007操作类  
	    vendor('phpexcel.PHPExcel.IOFactory'); 
	        
        $param = $request->param();
        $id = $param['id']; //要导出的数据id
        $name = isset($param['name']) ? $param['name'] : 'ExampleMemb'; //要导出的Excel表名
        
        $data = MeetingMembs::query("select platform,ticketType,avatar,realName,phone,company,job,email,ticketRemark,seatCode,id from h_meetingmembs where id = $id"); //从数据库中查到数据

        error_reporting(E_ALL);
        $objPHPExcel = new \PHPExcel();
        $letter = array('A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K');
        //表头数组
        $tableheader = array('购票平台', '票类', '头像', '姓名', '手机号码', '单位名称', '职位', '邮箱', '备注', '坐席', '报名号');
        
        //填充表头信息
        for ($i = 0; $i < count($tableheader); $i++) {
            $objPHPExcel->getActiveSheet()->setCellValue("$letter[$i]1", "$tableheader[$i]");
        }
        
        /*以下就是对处理Excel里的数据，横着取数据，主要是这一步，其他基本都不要改*/
        foreach ($data as $k => $v) {
            $num = $k + 1 + 1;
            $objPHPExcel->setActiveSheetIndex(0)
                //Excel的第A列，uid是你查出数组的键值，下面以此类推
                ->setCellValue('A' . $num, $v['platform'])//platform
                ->setCellValue('B' . $num, $v['ticketType'])//ticketType
                ->setCellValue('C' . $num, $v['avatar'])//avatar
                ->setCellValue('D' . $num, $v['realName'])//realName
                ->setCellValue('E' . $num, $v['phone'])//phone
                ->setCellValue('F' . $num, $v['company'])//company
                ->setCellValue('G' . $num, $v['job'])//job
                ->setCellValue('H' . $num, $v['email'])//email
                ->setCellValue('I' . $num, $v['ticketRemark'])//ticketRemark
                ->setCellValue('J' . $num, $v['seatCode'])//seatCode
                ->setCellValue('K' . $num, $v['id']);//id
        }
        
        $objPHPExcel->getActiveSheet()->setTitle('signMemb');
        $objPHPExcel->setActiveSheetIndex(0);
        header('Content-Type: application/vnd.ms-excel;charset=UTF-8"');
        header('Content-Disposition: attachment;filename="' . $name . '.xls"');
        header('Cache-Control: max-age=0');
        $objWriter = \PHPExcel_IOFactory::createWriter($objPHPExcel, 'Excel5');
        $objWriter->save('php://output');
        exit;
    }