Edit report at http://bugs.php.net/bug.php?id=51556&edit=1
ID: 51556
User updated by: luk-4u at hotmail dot com
Reported by: luk-4u at hotmail dot com
Summary: imagepng,imagegif not function properly
-Status: Feedback
+Status: Open
Type: Bug
Package: GD related
Operating System: centos5 x86_64 GNU/Linux
PHP Version: 5.2.6
New Comment:
thanks , ur sugggestion is correct.
Previous Comments:
------------------------------------------------------------------------
[2010-04-15 10:59:07] paj...@php.net
Works just fine here, with or without output buffering.
Please try using a recent PHP version as well, 5.2.6 is quite old
(5.2.13 is the latest and recommended version for 5.2.x).
------------------------------------------------------------------------
[2010-04-15 10:41:30] luk-4u at hotmail dot com
test.php:
<?php
ob_start();
//ob_end_clean();
header('Content-type: image/png');
imagepng(imagecreatefrompng('/home/webroot/a.png'));
//imagepng(imagecreatefrompng('/home/webroot/a.png'),
dirname(__FILE__).'/test.png');
//imagegif(imagecreatefrompng('/home/webroot/a.png'));
//imagejpeg(imagecreatefrompng('/home/webroot/a.png'));
exit;
?>
The script is as sime as above, and the environment is
nginx+fastcgi(php5.2.6), assume u hv a vhost setted up and the file
/home/webroot/a.png is available, just access it through
http://ur_vhost_name.com/test.php
3ks
------------------------------------------------------------------------
[2010-04-15 08:56:32] paj...@php.net
Thank you for this bug report. To properly diagnose the problem, we
need a short but complete example script to be able to reproduce
this bug ourselves.
A proper reproducing script starts with <?php and ends with ?>,
is max. 10-20 lines long and does not require any external
resources such as databases, etc. If the script requires a
database to demonstrate the issue, please make sure it creates
all necessary tables, stored procedures etc.
Please avoid embedding huge scripts into the report.
------------------------------------------------------------------------
[2010-04-15 06:46:02] luk-4u at hotmail dot com
change php ver
------------------------------------------------------------------------
[2010-04-15 03:40:59] luk-4u at hotmail dot com
Description:
------------
while running as cgi on nginx(the response is 'chunked' according to
firebug), and ob_start is activated using imagepng,imagegif to
outputimages to the browsers, these two are not correct, the browser
only received part of the image, while imagejpeg is correct. And without
ob_start or running as apache+mod_php(response not 'chunked') all three
are correct. And if add
'ob_end_clean()' before imagepng, it worked correctly.
phpinfo:
gd
GD Support enabled
GD Version bundled (2.0.34 compatible)
FreeType Support enabled
FreeType Linkage with freetype
FreeType Version 2.2.1
GIF Read Support enabled
GIF Create Support enabled
JPG Support enabled
PNG Support enabled
WBMP Support enabled
XBM Support enabled
Test script:
---------------
ob_start();
header('Content-type: image/png');
imagepng(imagecreatefrompng('/home/webroot/a.png'));
//imagegif(imagecreatefrompng('/home/webroot/a.png'));
//imagejpeg(imagecreatefrompng('/home/webroot/a.png'));
exit;
Expected result:
----------------
the image rendered entirely
Actual result:
--------------
firefox:the image rendered partly
ie6: imagepng and imagegif behaves more weirdly
------------------------------------------------------------------------
--
Edit this bug report at http://bugs.php.net/bug.php?id=51556&edit=1
