#50660 [NEW]: exif_read_data fails on a given image while giving no errors with other tools

From: Date: Mon, 04 Jan 2010 17:55:52 +0000
Subject: #50660 [NEW]: exif_read_data fails on a given image while giving no errors with other tools
Groups: php.bugs 
Request: Send a blank email to php-bugs+get-146328@lists.php.net to get a copy of this message 
From:             skinny dot bravo at gmail dot com
Operating system: Linux
PHP version:      5.2.12
PHP Bug Type:     EXIF related
Bug description:  exif_read_data fails on a given image while giving no errors with other tools

Description:
------------
PHP fails reading GPS data from a given set of photos from Samsung SGH-
i900. The images are said to come from the camera without any edits.

Ex: 

http://o1.imgsrc.ru/v/vahmurka/3/16095163cDU.jpg
http://o1.imgsrc.ru/v/vahmurka/1/16095161rno.jpg

exiftool 8.00 has no problem reading this file. php5.2-201001041530 
produces 
the same result.

Reproduce code:
---------------
# php -r 'var_dump(read_exif_data("16095163cDU.jpg",NULL,TRUE));'

Expected result:
----------------
...
["SectionsFound"]=>
    string(35) "ANY_TAG, IFD0, THUMBNAIL, EXIF, GPS"
...
["GPS"]=>
  array(8) {
    ["GPSVersion"]=>
    string(4) ""
    ["GPSLatitudeRef"]=>
    string(1) "N"
    ["GPSLatitude"]=>
    array(3) {
      [0]=>
      string(4) "43/1"
      [1]=>
      string(4) "16/1"
      [2]=>
      string(11) "75363/10000"
    }
    ["GPSLongitudeRef"]=>
    string(1) "E"
    ["GPSLongitude"]=>
    array(3) {
      [0]=>
      string(4) "77/1"
      [1]=>
      string(4) "21/1"
      [2]=>
      string(11) "140249/2629"
    }
    ["GPSAltitudeRef"]=>
    string(1) ""
    ["GPSAltitude"]=>
    string(6) "1603/1"
    ["GPSMapDatum"]=>
    string(6) "WGS-84"
  }

these results are taken after fixing image with exiftool: 
# exiftool -all= -tagsfromfile @ -all:all -unsafe 16095163cDU.jpg


Actual result:
--------------
Warning: read_exif_data(16095163cDU.jpg): Illegal IFD offset in 
Command line code on line 1
array(4) {
  ["FILE"]=>
  array(6) {
    ["FileName"]=>
    string(15) "16095163cDU.jpg"
    ["FileDateTime"]=>
    int(1259257839)
    ["FileSize"]=>
    int(938692)
    ["FileType"]=>
    int(2)
    ["MimeType"]=>
    string(10) "image/jpeg"
    ["SectionsFound"]=>
    string(19) "ANY_TAG, IFD0, EXIF"
  }

-- 
Edit bug report at http://bugs.php.net/?id=50660&edit=1
-- 
Try a snapshot (PHP 5.2):            http://bugs.php.net/fix.php?id=50660&r=trysnapshot52
Try a snapshot (PHP 5.3):            http://bugs.php.net/fix.php?id=50660&r=trysnapshot53
Try a snapshot (PHP 6.0):            http://bugs.php.net/fix.php?id=50660&r=trysnapshot60
Fixed in SVN:                        http://bugs.php.net/fix.php?id=50660&r=fixed
Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=50660&r=needdocs
Fixed in release:                    http://bugs.php.net/fix.php?id=50660&r=alreadyfixed
Need backtrace:                      http://bugs.php.net/fix.php?id=50660&r=needtrace
Need Reproduce Script:               http://bugs.php.net/fix.php?id=50660&r=needscript
Try newer version:                   http://bugs.php.net/fix.php?id=50660&r=oldversion
Not developer issue:                 http://bugs.php.net/fix.php?id=50660&r=support
Expected behavior:                   http://bugs.php.net/fix.php?id=50660&r=notwrong
Not enough info:                     http://bugs.php.net/fix.php?id=50660&r=notenoughinfo
Submitted twice:                     http://bugs.php.net/fix.php?id=50660&r=submittedtwice
register_globals:                    http://bugs.php.net/fix.php?id=50660&r=globals
PHP 4 support discontinued:          http://bugs.php.net/fix.php?id=50660&r=php4
Daylight Savings:                    http://bugs.php.net/fix.php?id=50660&r=dst
IIS Stability:                       http://bugs.php.net/fix.php?id=50660&r=isapi
Install GNU Sed:                     http://bugs.php.net/fix.php?id=50660&r=gnused
Floating point limitations:          http://bugs.php.net/fix.php?id=50660&r=float
No Zend Extensions:                  http://bugs.php.net/fix.php?id=50660&r=nozend
MySQL Configuration Error:           http://bugs.php.net/fix.php?id=50660&r=mysqlcfg

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