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Posted by Rik Wasmus on 11/15/07 23:17
On Thu, 15 Nov 2007 22:59:03 +0100, Mad Hatter <colin@class31.co.uk> wrote:
> Hi folks
>
> I'm a bit confused with an upload script that I've written. I want to be
> able to check the file type of an upload by checking the mime type but
> I'm
> not getting the results that I thought I should. According to what I've
> read .zip files should return something like 'application/zip' or
> 'application/x-zip-compressed', RAR should return
> 'application/x-rar-compressed' but both return
> 'application/octet-stream'.
> I'm getting the results that I expected when checking .jpg, .png of .gif
> files.
>
> I'm checking the mime type using $_FILES['userfile']['type']
The mime-type is user-submitted, totally unreliable and shouldn't be
trusted for any further processing. application/octet-stream is usually
the fallback for a binary file for which the the UA either doesn't know or
doesn't care about the mime-type.
If the mime-type is really important to you, try the fileinfo function
(http://nl2.php.net/manual/en/ref.fileinfo.php).
What's the reason the mime-type is of importance to you?
--
Rik Wasmus
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