我在php中创建了一个可下载的mp3文件，但下载后它就不播放了 - I created a downloadable mp3 file in php, but after downloading its not playing

I created a downloadable mp3 file in php, but after downloading its not playing

文件正在下载，但它是空的。这是代码：

if(isset($_POST['submit']))
{
   $file=$_POST['file_name'];
   if($file){
      header("Content-type:audio/mp3");
      header("Content-disposition:attachment; filename='$file' ");
      readfile('files/'.$file);
      exit();
    }
}
?>
<html>
<form action="" method="post">
    <input type="hidden" name="file_name" value="lat lag gayi">
    lat lag gayi <input type="submit" name="submit" id="submit" value="download">
</form>
</html>

怎么了？请帮忙。

Content-type:audio/mp3

您可以尝试将其更改为Content-type: audio/mpeg

另外，请尝试为filename='$file.mp3'提供扩展名以帮助浏览器。

音频媒体类型