php下载解决中文乱码问题

利用 iconv() 函数解决乱码

$file_name = iconv("utf-8","gb2312",$file_name);

 

具体下载代码如下：

public function downloadAction(){

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

        // 文件名

        $file_name="中文.txt";

        //用以解决中文不能显示出来的问题

        $file_name = iconv("utf-8","gb2312",$file_name);

        // 文件路径

        // $file_sub_path=$_SERVER['DOCUMENT_ROOT'];

        $file_path=$file_sub_path.'/'.$file_name;

        //首先要判断给定的文件存在与否

        if( !file_exists($file_path) || $file_path=='/' ){

            $arr = array(

'code' => '-103',

'message' => '操作失败',

'data' => '没有该文件文件'

 );

            echo json_encode( $arr );

            die();

        }

        $fp=fopen($file_path,"r");

        $file_size=filesize($file_path);

        //下载文件需要用到的头

        Header("Content-type: application/octet-stream");

        Header("Accept-Ranges: bytes");

        Header("Accept-Length:".$file_size);

        Header("Content-Disposition: attachment; filename=".$file_name);

        $buffer=1024;

        $file_count=0;

        //向浏览器返回数据

        while(!feof($fp) && $file_count<$file_size){

            $file_con=fread($fp,$buffer);

            $file_count+=$buffer;

            echo $file_con;

        }

        fclose($fp);

        die();

    }