You may want to try getimagesize(), as this is more consistent in
determining mime types.  That is what I wound up doing as it appears to
override the browser/platform idiosyncracies.

-m

> -----Original Message-----
> From: John T. Beresford [mailto:[EMAIL PROTECTED]
> Sent: Thursday, July 17, 2003 5:51 PM
> To: motorpsychkill; [EMAIL PROTECTED]
> Subject: RE: [PHP] jpeg photo file upload problem
>
>
>
> You're exactly right.
>
> I did a test on a win box and it reported image/pjpeg
> I ran tests on other browsers/platforms, and for a .jpg image, only a
> handful of win boxes reported the 'pjpeg' thing.
>
> I also did tests using 'regular jpegs' and 'progressive jpegs' and
> that had no effect.
>
> Apparently the ms browser on a win box calls a 'jpeg a 'pjpeg'
>
> Anyway, to all, thanks for all the help, it's all working now.
>
> John
>
>
> At 5:43 PM -0700 7/17/03, motorpsychkill wrote:
> >I suspect this may be a browser/platform issue.  I've recently run some
> >tests and below are the most interesting results (mime types):
> >
> >IE 6 on PC:
> >something.jpg        ->              image/pjpeg
> >something.tif (pc format) -> application/octet-stream
> >something.tif (mac format) ->        image/tiff
> >
> >IE 5 on Mac:
> >something.bmp ->             application/octet-stream
> >something.jpg ->             image/jpeg
> >
> >
> >NS 4.7 on Mac:
> >something.bmp        ->              image/x-MS-bmp
> >
> >Opera 7 on PC:
> >something.bmp        ->              image/x-windows-bmp
> >
> >I suspect if you want to validate jpgs, use image/jpeg and image/pjpeg or
> >validate by examining the extention (ie ".jpg").  I don't know
> how safe the
> >latter is.
> >
> >HTH,
> >
> >m
> >
> >
> >>  -----Original Message-----
> >>  From: John T. Beresford [mailto:[EMAIL PROTECTED]
> >>  Sent: Wednesday, July 16, 2003 7:49 PM
> >>  To: [EMAIL PROTECTED]
> >>  Subject: [PHP] jpeg photo file upload problem
> >>
> >>
> >>  Hi All,
> >>
> >>  I have a system that allows a person to upload photos to the server
> >>  via an admin web form.
> >>
> >>  I have been using the code for about a year with no problem. I
> >>  designed it specifically for a client of mine that has just started
> >>  cruising on a sailboat for a few years.
> >>
> >>  They tryed uploading a photo from a public library via the web form
> >>  and they got the error message that it was not a jpeg file.
> >>
> >>  The relevent PHP code from my system for the checking is:
> >>
> >>  if ($type != "image/jpeg") {
> >>  $ReturnSaying = "!! The file is not a JPEG picture. Please try again";
> >>  include("photo_error.php");
> >>  exit;
> >>
> >>  Anyway, this system has been tested and tested again on multiple
> >>  platforms and conditions, except a public library.
> >>
> >>  Question: Is it possible that the library is using some proxy system
> >>  that is messing with the file so it comes out bad?
> >>
> >>  Also, I have confirmed that the file is a jpeg file.
> >>
> >>  Any ideas are greatly appreciated,
> >>  John
> >>
> >>  --
> >>  ===========================
> >>  John T. Beresford, Owner
> >>  Digital Studio Design
> >>  Edmond, OK
> >>  http://www.digitalstudiodesign.com/
> >>  405.760.0794
> >>
> >>  --
> >>  PHP General Mailing List (http://www.php.net/)
> >>  To unsubscribe, visit: http://www.php.net/unsub.php
> >>
> >
> >
> >--
> >PHP General Mailing List (http://www.php.net/)
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>
> --
> ===========================
> John T. Beresford, Owner
> Digital Studio Design
> Edmond, OK
> http://www.digitalstudiodesign.com/
> 405.760.0794
>
> --
> PHP General Mailing List (http://www.php.net/)
> To unsubscribe, visit: http://www.php.net/unsub.php
>


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