#22120 [Opn->Bgs]: GetImageSize seems confused on certain JPGs from certain hosts

[sniper]

 ID:               22120
 Updated by:       [EMAIL PROTECTED]
 Reported By:      [EMAIL PROTECTED]
-Status:           Open
+Status:           Bogus
 Bug Type:         GetImageSize related
 Operating System: Linux 2.2.19 (Debian)
 PHP Version:      4.3.0
 New Comment:

Please do not submit the same bug more than once. An existing
bug report already describes this very problem. Even if you feel
that your issue is somewhat different, the resolution is likely
to be the same. Because of this, we hope you add your comments
to the existing bug instead.

Thank you for your interest in PHP.


See bug #21912



Previous Comments:
------------------------------------------------------------------------

[2003-02-08 00:33:40] [EMAIL PROTECTED]

My apologies - it seems to work on bug2.jpg (the version loaded into
GIMP and then resaved out.)

------------------------------------------------------------------------

[2003-02-08 00:26:15] [EMAIL PROTECTED]

GetImageSize() seems confused on certain JPGs from freeservers.  The
JPG is valid (you can load it from your web-browser).

Script to reproduce:
<?

$res = GetImageSize("http://guildprime.8m.net/bug.jpg";);
if($res == FALSE)
{
  print("Erk! GetImageSize returned FALSE!");
} else {
  print_r($res);
}

print("<br><br>");

$res = GetImageSize("http://guildprime.8m.net/notbug.jpg";);
if($res == FALSE)
{
  print("Erk! GetImageSize returned FALSE!");
} else {
  print_r($res);
}

?>

The script SHOULD report:
Array ( [0] => 396 [1] => 178 [2] => 2 [3] => width="396" height="178"
[bits] => 8 [channels] => 3 ) 
Array ( [0] => 800 [1] => 600 [2] => 2 [3] => width="800" height="600"
[bits] => 8 [channels] => 3 ) 

And it does when I copy the file to my local Apache web server and
change the script to point there instead.  It also works on a second
server I have running PHP 4.1.2.

However, with the URL listed, under PHP 4.3.0, it reports:
Erk! GetImageSize returned FALSE!
Array ( [0] => 800 [1] => 600 [2] => 2 [3] => width="800" height="600"
[bits] => 8 [channels] => 3 [mime] => image/jpeg ) 

Configuration options:
./configure  --with-apxs --with-zlib --with-bz2 --with-gd=/usr
--enable-gd-native-ttf --with-mysql=/usr --enable-sockets --prefix=/usr
--with-ttf --enable-ftp

Troubleshooting steps already taken:
- I tried copying the image to my local web server, changed the script
to look there, and it works.
- Dozens of other JPGs on freeservers work as well.
- It seems this combination of server and image file is causing
GetImageSize() to fail.  When I point my web browser at the same URL,
the picture comes up. 
- I tried putting the picture into GIMP and resaving out - the re-saved
image also has the same problems.  (This file is bug2.jpg at the same
site.)
- Running 'identify -verbose' on the files shows perhaps the difference
of Resolution (notbug.jpg is 300x300 pixels/inch, as are most of the
other pictures, while bug.jpg and bug2.jpg are at72x72 pixels/inch) may
be part of what's triggering it.
- I have re-downloaded the source, re-compiled and re-installed with
the above options, with no change in results.
- Running the script from the command line has no change in results.

All-in-all, quite strange...


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