读取 mp3 流并在 php 中回显给客户端

read mp3 stream and echo back to client in php

我打算实现的是一个页面,当客户端连接时,该页面不断从本地冰铸服务器(http://127.0.0.1:8000/stream.mp3)读取,并将流回显到客户端,从那里,客户端可以在基本音频标签中播放它。

<?php
header("Content-Transfer-Encoding: binary"); 
header("Content-Type: audio/mpeg, audio/x-mpeg, audio/x-mpeg-3, audio/mpeg3");
header('Content-Disposition: attachment; filename="stream.mp3"');
header('X-Pad: avoid browser bug');
header('Cache-Control: no-cache');
print file_get_contents("http://127.0.0.1:443/stream.mp3");

使用此代码,它只会占用 ram,returns 对客户端没有任何用处,我正在考虑等待 MB 缓冲区已满,然后将其回显给客户端。但是我知道,是的。

请注意,我在 php 方面经验不足。谢谢!

file_get_contents 尝试读取流直到结束,因为您正在尝试从广播服务器读取,所以不会有结束。

如果 HTML5 是一个选项,则以下可能有效。

<audio autoplay>
  <source src="http://127.0.0.1:443/stream.mp3" type="audio/mpeg">      
</audio>

备选方案:

<?php
ob_start();
header("Content-Transfer-Encoding: binary"); 
header("Content-Type: audio/mpeg, audio/x-mpeg, audio/x-mpeg-3, audio/mpeg3");
header('Content-Disposition: attachment; filename="stream.mp3"');
header('X-Pad: avoid browser bug');
header('Cache-Control: no-cache');
$handle = fopen("http://127.0.0.1:443/stream.mp3");

while (($data = fread($handle, $bufferSize)) { //Buffer size needs to be large enough to not break audio up while getting the next part
      echo $data;
      ob_flush();
      flush();
      set_time_limit(30); // Reset the script execution time to prevent timeouts since this page will probably never terminate. 
}