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Posted by Chuck Anderson on 11/17/06 23:14
David T. Ashley wrote:
> I've used Apache with the automatic directory indexes ... works great ...
> just click on the file name and IE magically figures out how to display it
> ... if it is a .PDF then Adobe Acrobat runs, etc.
>
> However, I'd like to "serve" files in a more restrictive context where:
>
> a)The user has to have a valid session identifier in order to get a file.
>
> b)The files I'd be serving aren't in directories that Apache can get to
> directly, i.e. not in a "Document Root" or aliased directory (although it
> has the right permissions to get the files).
>
> Is it possible to do this with PHP?
>
Yes.
> Can PHP just spit out the right MIME information
Yes.
> and then somehow open and encode the file and the client will treat it properly?
>
If the mime type is right, the client should be able to treat it properly.
> Are there any PHP functions that help with the encoding?
>
No encoding is needed.
You can add headers with header and serve it with readfile or include.
> Are there any good web references?
>
Php.net usually has lots of good notes added by users.
Here's how I serve a pdf file that exists outside of the site home
directory.
$file = 'path to the pdf file';
header('Content-Description: File Transfer');
header('Content-Type: application/pdf');
header('Content-Length: ' . filesize($file));
// to open in browser
header('Content-Disposition: inline; filename=' . basename($file));
// to download
// header('Content-Disposition: attachment; filename=' . basename($file));
readfile($file); /* or use include($file); */
--
*****************************
Chuck Anderson • Boulder, CO
http://www.CycleTourist.com
*****************************
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