Edit report at http://bugs.php.net/bug.php?id=51315&edit=1
ID: 51315
User updated by: administrateur at exinsidephp dot com
Reported by: administrateur at exinsidephp dot com
-Summary: imagettftext randomly don't work
+Summary: imagettfbbox randomly don't work
Status: Open
Type: Bug
Package: GD related
Operating System: Debian GNU/Linux 5.0
PHP Version: 5.3.2
New Comment:
rechange title
Previous Comments:
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[2010-03-19 16:35:50] administrateur at exinsidephp dot com
So I have add debug line and i find origin of bug :
View my previous script an modify width this line :
$tab =
imagettfbbox(8,0,Config::getCons('PATH_CACHE').'font/verdana.TTF',
$texte);
$text_x = (55-($tab[2]-$tab[6]))/2;
$text_y = (15-($tab[1]-$tab[5]))/2+9;
file_put_contents(Config::getCons('PATH_CACHE').'log_font.txt', $text.'
x:'.$text_x.' y:'.$text_y.'
imagbox:'.json_encode($tab)."\n",FILE_APPEND);
The result :
x:12 y:12.5 imagbox:[-1,-1,30,-1,30,-9,-1,-9]
x:33554459 y:12.5
imagbox:[-1,-1,-33554433,-1,-33554433,-9,33554430,-9]
x:33554459 y:12.5
imagbox:[-1,-1,-33554433,-1,-33554433,-9,33554430,-9]
x:33554459 y:12.5
imagbox:[-1,-1,-33554433,-1,-33554433,-9,33554430,-9]
x:12 y:12.5 imagbox:[-1,-1,30,-1,30,-9,-1,-9]
x:12 y:12.5 imagbox:[-1,-1,30,-1,30,-9,-1,-9]
x:12 y:12.5 imagbox:[-1,-1,30,-1,30,-9,-1,-9]
x:12 y:12.5 imagbox:[-1,-1,30,-1,30,-9,-1,-9]
x:12 y:12.5 imagbox:[-1,-1,30,-1,30,-9,-1,-9]
x:12 y:12.5 imagbox:[-1,-1,30,-1,30,-9,-1,-9]
x:33554459 y:12.5
imagbox:[-1,-1,-33554433,-1,-33554433,-9,33554430,-9]
x:12 y:12.5 imagbox:[-1,-1,30,-1,30,-9,-1,-9]
So the problem is located on imagettfbbox funtion, it give wrong value
for x position.
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[2010-03-19 16:26:47] administrateur at exinsidephp dot com
Change title of bug
------------------------------------------------------------------------
[2010-03-17 20:55:28] administrateur at exinsidephp dot com
Description:
------------
Hi,
I have ugraded PHP 5.2 to PHP 5.3.2 on my Debian server and I have found
a bug width ths function imagettfbbox.
Sometimes the text don't show on the image generated :
http://www.exinsidephp.com/cache/example.png
If I refresh the page (Ctrl+F5) another image don't display the text :
http://www.exinsidephp.com/cache/example2.png
Any error on PHP Blog, any error on syslog or kernel log... I haven't
find any trace of error. Someone have the same issue ?
The PHP Package come from http://www.dotdeb.org/ website. The list of
modules installed (dpkg -l | grep php5) :
ii libapache2-mod-php5 5.3.2-0.dotdeb.1
ii php5 5.3.2-0.dotdeb.1
ii php5-cli 5.3.2-0.dotdeb.1
ii php5-common 5.3.2-0.dotdeb.1
ii php5-curl 5.3.2-0.dotdeb.1
ii php5-dev 5.3.2-0.dotdeb.1
ii php5-gd 5.3.2-0.dotdeb.1
ii php5-geoip 5.3.2-0.dotdeb.1
ii php5-imagick 5.3.2-0.dotdeb.1
ii php5-imap 5.3.2-0.dotdeb.1
ii php5-mcrypt 5.3.2-0.dotdeb.1
ii php5-mysql 5.3.2-0.dotdeb.1
ii php5-suhosin 5.3.2-0.dotdeb.1
ii php5-xcache 5.3.2-0.dotdeb.1
Test script:
---------------
header('Cache-Control: no-store, no-cache, must-revalidate');
header('Cache-Control: post-check=0, pre-check=0', false);
header('Pragma: no-cache');
header('Content-Type: image/png');
$image = imagecreate(55,15);
imagecolorallocate($image, 0,0,0);
if($get->getValue('temp2'))
$texte = $get->getValue('temp1').'/'.$get->getValue('temp2').' °C';
else
$texte = $get->getValue('temp1').' °C';
$tab =
imagettfbbox(8,0,Config::getCons('PATH_CACHE').'font/verdana.TTF',
$texte);
$text_x = (55-($tab[2]-$tab[6]))/2;
$text_y = (15-($tab[1]-$tab[5]))/2+9;
//$color = imagecolorallocate($image, 2,119,186);
$color = imagecolorallocate($image, 255,255,255);
imagettftext($image,8,0,$text_x,$text_y,$color,Config::getCons('PATH_CACHE').'font/verdana.TTF',$texte);
imagepng($image);
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Edit this bug report at http://bugs.php.net/bug.php?id=51315&edit=1
