The two code snippets presented in this page can be used to output audio MP3 files, or to force the Download, with PHP.
- Click on the code to select it.

Output MP3 with PHP

$mp3 ='path_to/mp3_file.mp3';
if(file_exists($mp3)) {
  header('Content-Type: audio/mpeg');
  header('Content-Disposition: inline; filename="mp3_file.mp3"');
  header('Content-length: '. filesize($mp3));
  header('Cache-Control: no-cache');
  header('Content-Transfer-Encoding: chunked'); 
  readfile($mp3);
  exit;
}

Force Download MP3 file with PHP

$mp3 ='path_to/mp3_file.mp3';
if(file_exists($mp3)) {
  header('Content-Type: audio/mpeg');
  header('Content-Disposition: attachment; filename="mp3_file.mp3"');
  header('Content-length: '. filesize($mp3));
  header('Cache-Control: no-cache');
  header('Content-Transfer-Encoding: chunked'); 
  readfile($mp3);
  exit;
}
- Notice, the only difference is to this header():
header('Content-Disposition: attachment; filename="mp3_file.mp3"');
- "inline" to play the MP3 within the browser (if capabilities exist), and "attachment" to force download.

Daily Test with Code Example

HTML
CSS
JavaScript
PHP-MySQL
Which tag is used in <table> to create table header cell?
<thead> <th> <td>
<table><tr>
  <th>Title 1</th>
  <th>Title 2</th>
</tr></table>
Which CSS property sets the distance between lines?
line-height word-spacing margin
.some_class {
  line-height: 150%;
}
Which function opens a new browser window.
alert() confirm() open()
document.getElementById("id_button").onclick = function(){
  window.open("http://coursesweb.net/");
}
Indicate the PHP function that returns an array with names of the files and folders inside a directory.
mkdir() scandir() readdir()
$ar_dir = scandir("dir_name");
var_export($ar_dir);
Output or Force Download MP3 with PHP

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