header - Output mp3 with php

Question

I'm working on my school project and I'm trying to output a mp3 file using PHP but apparently it just outputs some corrupt file and I have no clue why. I browsed the entire net to find a solution, but no.

<?php
$filename = 'audio/1/1.mp3';

if(file_exists($filename)) {
    header('Content-Type: audio/mpeg');
    header('Content-Disposition: filename="test.mp3"');
    header('Content-length: '.filesize($filename));
    header('Cache-Control: no-cache');
    header("Content-Transfer-Encoding: chunked"); 

    readfile($filename);
} else {
    header("HTTP/1.0 404 Not Found");
}
?>

Can anyone explain this to me? That would be totally awesome!

Answer 1

header('Content-Disposition: inline;filename="test.mp3"');

That's what you're missing in your header() (you had no "inline" specified). Content-Transfer-Encoding should be "binary", not "chunked".

Edit: use "inline" if you want it to be displayed within the browser (if capabilities exist) or "attachment" if you want to force download.