How to Serve Mp3 Files with PHP

Can I serve MP3 files with PHP?

Your Content-Disposition should be:

header('Content-Disposition: attachment; filename="sometrack.mp3"');

Not sure if that's the problem though. I would also recommend using readfile to output the file:

readfile($rSong);

Also, it can't hurt to use an exhaustive Content-Type header, and set the Content-Transfer-Encoding:

header("Content-Transfer-Encoding: binary"); 
header("Content-Type: audio/mpeg, audio/x-mpeg, audio/x-mpeg-3, audio/mpeg3"); 

Setting up apache to serve PHP when an MP3 file is requested

There are some errors in your code:

• A resource can only have one single Content-Type value. So you have to decide what media type you want to use. I suggest audio/mpeg.
• You forgot to specify the disposition in Content-Disposition. If you just want give a filename and don’t want to change the disposition, use the default value inline.

The rest looks fine. But I would also send the 404 status code if the file cannot be found.

$track = "lilly.mp3";

if (file_exists($track)) {
    header("Content-Type: audio/mpeg");
    header('Content-Length: ' . filesize($track));
    header('Content-Disposition: inline; filename="lilly.mp3"');
    header('X-Pad: avoid browser bug');
    header('Cache-Control: no-cache');
    readfile($track);
    exit;
} else {
    header($_SERVER['SERVER_PROTOCOL'].' 404 Not Found', true, 404);
    echo "no file";
}

Play mp3 audio and video with php

Try These Html Tags.

<audio controls>
      <source src="horse.ogg" type="audio/ogg">
      <source src="horse.mp3" type="audio/mpeg">
    </audio>

  <video width="320" height="240" controls>
      <source src="movie.mp4" type="video/mp4">
      <source src="movie.ogg" type="video/ogg">
    </video>  

PHP Download MP3 files from directory on server

First, header()should be sent before any output which includes echo, print_r, any html, a blank space before the opening tag(eg. <?php). Refer
to the manual

Second, if you want to response with the content of a file to the browser, your script should not output anything else. Any output besides the content will be considered a part of the content. Unless you send it as multipart and your client is able to handle it.

So, an example

<?php

$fileName = $_GET['file'];
$path = '/directory/contains/mp3/';
$file = $path.$fileName;

if (!file_exists($file)) {
    http_response_code(404);
    die();
}

header("Cache-Control: private");
header("Content-type: audio/mpeg3");
header("Content-Transfer-Encoding: binary");
header("Content-Disposition: attachment; filename=".$fileName);
//So the browser can display the download progress
header("Content-Length: ".filesize($file));

readfile($file);

PHP Streaming MP3

Here's what did the trick.

$dir = dirname($_SERVER['DOCUMENT_ROOT'])."/protected_content";
$filename = $_GET['file'];
$file = $dir."/".$filename;

$extension = "mp3";
$mime_type = "audio/mpeg, audio/x-mpeg, audio/x-mpeg-3, audio/mpeg3";

if(file_exists($file)){
    header('Content-type: {$mime_type}');
    header('Content-length: ' . filesize($file));
    header('Content-Disposition: filename="' . $filename);
    header('X-Pad: avoid browser bug');
    header('Cache-Control: no-cache');
    readfile($file);
}else{
    header("HTTP/1.0 404 Not Found");
}

How to upload mp3 files

Looks like your mp3 file cannot be uploaded, so it is missing in $_FILES array. That might be due to its size compared to image files.

Please check upload_max_filesize and post_max_size settings from your php.ini and allow a greater size than your mp3 file.

How to mix/merge 2 mp3 files in PHP?

Based off of this question, you should be able to install FFMPEG onto your server (hopefully not a shared host?) and use

//Reduce background volume, assuming it's input2.mp3
shell_exec('ffmpeg -i input2.mp3 -af "volume=0.3" backround.wav');
//Merge the two
shell_exec('ffmpeg -y -i input1.mp3 -i background.wav -filter_complex amerge -c:a libmp3lame -q:a 4 output.mp3');

Then you can simply serve up the output.mp3 file. If this is being performed by PHP running under apache (or other web host, instead of CLI) you'll need to make sure your www-data user has read access to the input files, and write access to the output directory.

All your temporary output, like the background, should be saved as .wav, and only converted back to .mp3 for the final output. Recompressing the audio at each step may result in a very poor final output.

I am making assumptions about how FFMPEG works here, so you may need to consult the documentation for it in order to build a functioning or more efficient set of commands.

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