<?php

 /**

  * 导出到excel文件(一般导出中文的都会乱码，需要进行编码转换）

  * 使用方法如下

  * $excel = new Excel();

  * $excel->addHeader(array('列1','列2','列3','列4'));

  * $excel->addBody(

             array(

                 array('数据1','数据2','数据3','数据4'),

                 array('数据1','数据2','数据3','数据4'),

                 array('数据1','数据2','数据3','数据4'),

                 array('数据1','数据2','数据3','数据4')

             )

         );

  * $excel->downLoad();

  */

 class Excel{

     private $head;

     private $body;

     /**

      * 

      * @param type $arr 一维数组

      */

     public function addHeader($arr){

         foreach($arr as $headVal){

             $headVal = $this->charset($headVal);

             $this->head .= "{$headVal}\t ";

         }

         $this->head .= "\n";

     }

     /**

      * 

      * @param type $arr 二维数组

      */

     public function addBody($arr){

         foreach($arr as $arrBody){

             foreach($arrBody as $bodyVal){

                 //$bodyVal = $this->charset($bodyVal);

                 $this->body .= "{$bodyVal}\t ";

             }

             $this->body .= "\n";

         }

     }

     /**

      * 下载excel文件

      */

     public function downLoad($filename=''){

         if(!$filename)

             $filename = date('YmdHis',time()).'.xls';

         header("Content-type:application/vnd.ms-excel");

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

         header("Content-Type:charset=gb2312");

         if($this->head)

             echo $this->head;

         echo $this->body;

     }

     /**

      * 编码转换

      * @param type $string

      * @return string

      */

     public function charset($string){

         return iconv("utf-8", "gb2312", $string);

     }

 }

 ?>