PHPExcel下载（从数据库获取数据）示例代码

<?php

/**

 * PHPEXCEL生成excel文件

 * @author:firmy

 * @desc 支持任意行列数据生成excel文件，暂未添加单元格样式和对齐

 */

header("connect-type:text/html;charset=utf-8");

$dsn="mysql:host=localhost;dbname=me";

$db=new PDO($dsn,'root','123',array(PDO::MYSQL_ATTR_INIT_COMMAND=>'SET NAMES \'utf8\''));

$count=$db->query("select * from test");

$data=$count->fetchAll(PDO::FETCH_ASSOC);

//print_r($res);die;

require_once 'Classes/PHPExcel.php';

require_once 'Classes/PHPExcel/Reader/Excel2007.php';

require_once 'Classes/PHPExcel/Reader/Excel5.php';

include_once 'Classes/PHPExcel/IOFactory.php';

    //创建新的PHPExcel对象

    $objPHPExcel = new PHPExcel();

    $objProps = $objPHPExcel->getProperties();

    //设置表头

    $i=0;

    foreach($data as $k=>$v){

        //print_r($v);die;

        if($i<1){

            $arrd=array_keys($v);

            //print_r($arrd);die;

            $key = ord("A");

            foreach($arrd as $kk=>$vv){

                $colum = chr($key);

                $objPHPExcel->setActiveSheetIndex(0) ->setCellValue($colum.'1', $vv);

                $key += 1;

            }

        }

        $i++;

    }

    $column = 2;

    $objActSheet = $objPHPExcel->getActiveSheet();

    foreach($data as $key => $rows){ //行写入

        $span = ord("A");

        foreach($rows as $keyName=>$value){// 列写入

            $j = chr($span);

            $objActSheet->setCellValue($j.$column, $value);

            $span++;

        }

        $column++;

    }

    //下载

    //将输出重定向到一个客户端web浏览器(Excel2007)

    $fileName = iconv("utf-8", "gb2312", "bao.xls");

    header("Content-Disposition: attachment; filename=\"$fileName\"");

    header('Cache-Control: max-age=0');

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

    $objWriter->save('php://output'); //文件通过浏览器下载