#31797 [Bgs->Opn]: exif_read_data reads very little data from what it used to read

[shimi at shimi dot net]

 ID:               31797
 User updated by:  shimi at shimi dot net
 Reported By:      shimi at shimi dot net
-Status:           Bogus
+Status:           Open
 Bug Type:         *Graphics related
 Operating System: Linux
 PHP Version:      4CVS-2005-02-01 (stable)
 New Comment:

I see him not wanting to nest further, thus deciding that "the header
is bad". I tried it on numerous images, made by numerous cameras
(Nikon, Sony, Olympus) - in all of them I get the same error, the image
loads FINE, and other utilities (not PHP) _CAN_ read the missing data.
PHP could read it too in the past. This code worked, and it has not
been touched, and has now stopped working.

If you insist that the problem is on my end, can you please give me a
URL that EXIF DOES parse the EXIF data for correctly?


Previous Comments:
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[2005-02-01 21:52:07] [EMAIL PROTECTED]

Add 'error_reporting(E_ALL);' to your script:

PHP Warning:  exif_read_data(82728697.jpg): corrupt EXIF header:
maximum directory nesting level reached in Command line code on line 1

Corrupted image -> no bug in PHP.


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[2005-02-01 21:42:47] shimi at shimi dot net

Description:
------------
I have a script that parses EXIF data from images, displaying them as a
new image (using GD) that contains the data. Lately (I am not sure when
exactly, but I suspect it was after upgrading to STABLE-CVS due to
fixing of the unserialize() bug I suffered badly from), it seems that
most of the important EXIF data is simply not read (like ExposureTime,
etc). I asked someone to verify that the image indeed has the details,
and it looks that it does. Here's a screenshot from his EXIF read:
http://uploaded.fresh.co.il/2005/02/01/76282133.png

Reproduce code:
---------------
$data=exif_read_data("http://uploaded.fresh.co.il/2005/01/23/82728697.jpg";);
print_r($data);

Expected result:
----------------
See all EXIF data stored on file.

Actual result:
--------------
Only part of the EXIF is retrieved:
Array
(
    [FileName] => 82728697.jpg
    [FileDateTime] => 1106515041
    [FileSize] => 102438
    [FileType] => 2
    [MimeType] => image/jpeg
    [SectionsFound] => ANY_TAG, IFD0
    [COMPUTED] => Array
        (
            [html] => width="494" height="616"
            [Height] => 616
            [Width] => 494
            [IsColor] => 1
            [ByteOrderMotorola] => 0
        )

    [ImageDescription] => OLYMPUS DIGITAL CAMERA         
    [Make] => OLYMPUS OPTICAL CO.,LTD
    [Model] => C4100Z,C4000Z
    [XResolution] => 72/1
    [YResolution] => 72/1
    [ResolutionUnit] => 2
)



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