Thinkphp将报表的数据导出到excel文件

/**
	    * 导出数据为excel表格
	    [email protected] $data    一个二维数组,结构如同从数据库查出来的数组
	    [email protected] $title   excel的第一行标题,一个数组,如果为空则没有标题
	    [email protected] $filename 下载的文件名
	    [email protected] 
	    $stu = M ('User');
	    $arr = $stu -> select();
	    exportexcel($arr,array('id','账户','密码','昵称'),'文件名!');
	*/
	 function exportexcel($data=array(),$title=array(),$filename='report'){
	    header("Content-type:application/octet-stream");
	    header("Accept-Ranges:bytes");
	    header("Content-type:application/vnd.ms-excel");  
	    header("Content-Disposition:attachment;filename=".$filename.".xls");
	    header("Pragma: no-cache");
	    header("Expires: 0");
	    //导出xls 开始
	    if (!empty($title)){
	        foreach ($title as $k => $v) {
	            $title[$k]=iconv("UTF-8", "GB2312",$v);
	        }
	        $title= implode("\t", $title);
	        echo "$title\n";
	    }
	    if (!empty($data)){
	        foreach($data as $key=>$val){
	            foreach ($val as $ck => $cv) {
	                $data[$key][$ck]=iconv("UTF-8", "GB2312", $cv);
	            }
	            $data[$key]=implode("\t", $data[$key]);
	            
	        }
	        echo implode("\n",$data);
	    }
	 }