PHPexcel 下载

<?php

$dsn="mysql:dbname=me;host=127.0.0.1;charset=utf8";

//连接mysql数据库
$user="root";
$pwd='root';
$pdo=new PDO($dsn,$user,$pwd);

$sql="select id,name,content,decs from goods";
$psd=$pdo->prepare($sql);

$psd->execute();
//echo "<pre>";
$arr=$psd->fetchAll(PDO::FETCH_ASSOC);

//引入类文件
require_once 'PHPExcel.php';
require_once 'PHPExcel/IOFactory.php';
require_once 'PHPExcel/Reader/Excel5.php';

 //创建新的PHPExcel对象
 $objPHPExcel = new PHPExcel();
 $objProps = $objPHPExcel->getProperties();
 
    //设置表头
   // $key = ord("A");//ord() 函数返回字符串第一个字符的 ASCII 值。
 $i=0;
    foreach($arr as $k=>$v){
  //print_r($v);die;
  //array_flip();
        //$objPHPExcel->setActiveSheetIndex(0) ->setCellValue($colum.'1', $v);//setCellValue()单元格赋值;
        //$key += 1; 
  if($i<1){
   //返回数组中的所有键名
   $arrd=array_keys($v);
   //print_r($arrd);die;
   //返回字符的ASCII码值
   $key = ord("A");
           
   foreach($arrd as $ka=>$va){
    //print_r($arrd);die;
    //返回指定字符
    $colum = chr($key);
    //print_r($colum);die;
    $objPHPExcel->setActiveSheetIndex(0) ->setCellValue($colum.'1', $va);//setCellValue()单元格赋值;
    $key+=1;
   }
  }
  $i++;
  
    }
 $column = 2;
    $objActSheet = $objPHPExcel->getActiveSheet();
    foreach($arr as $key => $rows){ //行写入
  //print_r($rows);die;
        $span = ord("A");
        foreach($rows as $keyName=>$value){// 列写入
   
            $h = chr($span);
    
            $objActSheet->setCellValue($h.$column, $value);
            $span++;
        }
        $column++;
    }

 
 //写入类容
 //$obwrite = PHPExcel_IOFactory::createWriter($objPHPExcel, 'Excel2007');
 //保存文件(直接生成文件)
 //$obwrite->save('shuju.xls');
 
 //下载
 //将输出重定向到一个客户端web浏览器(Excel2007)
    $fileName = iconv("utf-8", "gbk", "haha.xls");
  
          //header('Content-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet');
    header('Content-Type: application/vnd.ms-excel; charset=gbk');
          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
 
?>