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    <p>Thanks for everyone's answers. </p> <p>I actually ended up solving the problem without revealing the path to the audio file to the user. </p> <p>Because this is for an online voice messaging application, it was important to protect the path to the messages in order to protect the user's privacy. </p> <p>The situation ended up being further complicated by the fact that the messages are stored on a remote server... found this out right after I posted this question. </p> <p>So all in all the process was: </p> <p>1) Curl the MP3 file from the remote server</p> <p>2) Set some headers to force the download of the data, which you then echo to stdout</p> <p>Because the data is being put on standard out and the headers are set to force a download, the effect for jPlayer is the same as if it had requested a file at /some/dir/message.mp3, except that the request goes to /some/dir/playmessage.php - thus the path is never revealed to the user. </p> <p>EDIT** - <strong>Assume that I have access control, validation running before the snippit below, otherwise exposing the path to the script below is no different than just exposing the path to the mp3. (see comments between me and Lloyd)</strong></p> <p>Here's the code that ended up getting the job done: </p> <pre><code>$ch = curl_init($remoteFile); curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); curl_setopt($ch, CURLOPT_HEADER, true); $data = curl_exec($ch); curl_close($ch); if ($data === false) { echo 'CURL Failed'; exit; } //Get file size if (preg_match('/Content-Length: (\d+)/', $data, $matches)) { $contentLength = (int)$matches[1]; } //force user to download file contents header('Content-Transfer-Encoding: binary'); header('Content-Type: audio/mpeg'); header('Expires: 0'); header('Cache-Control: must-revalidate'); header('Content-Length: ' . $contentLength); ob_clean(); flush(); echo $data; exit; ?&gt; </code></pre> <p>Assume that <code>$remoteFile</code> is a path to the mp3 file that I want to play on the server where we are storing messages.</p> <p>I found this resource on <a href="http://www.php-mysql-tutorial.com/wikis/php-tutorial/reading-a-remote-file-using-php.aspx" rel="nofollow">reading a remote file using PHP</a> especially helpful. Here's some more information on <a href="http://www.jonasjohn.de/snippets/php/headers.htm" rel="nofollow">modifying http headers</a>.</p> <p><strong>NOTE</strong> I am essentially downloading the file twice, which slows the process down for the user. There is probably a better way to do this. :) If you kept the file locally, what I had initially in my question actually works (using readfile() to output the raw mp3 data). </p>
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    1. POStreaming an MP3 on stdout to Jplayer using PHP
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    1. POStreaming an MP3 on stdout to Jplayer using PHP
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    1. COis it just the *filename* you must conceal from the user? if you are using jPlayer to play a media file then the path to file played will be revealed in Firefox/Chrome/Safari/IE9 Developer Tools. Whether the path is `/some/dir/message.mp3` or `/some/dir/playmessage.php` makes no difference - it is still a URL to media which can be freely accessed and downloaded.. I don't consider your solution private..
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    2. COHi lloyd, Thanks for your feedback. I've tested it in both firebug and developer tools and it does conceal the path to the mp3. Basically what happens is this: 1) The php script curls the mp3 file as binary data into a variable 2) the php script sets the headers to force a download 3) the php script puts binary data onto stdout, and because of the headers, jplayer treats the response data it gets from the php file as if it were downloading an mp3 file (which it is, essentially). The path curl uses to the original mp3 is no more visable than any other php variable you don't output.
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    3. COAh, I see what you are saying now... yes - it is just the path to the mp3 file name that I must protect due to the architecture of the application. That they have the path to the php script is ok, because I have authentication built in here that will only output the mp3 data to certain users.
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