php imagepng problems
Paolo Bonavoglia
paolo.bonavoglia at liceofoscarini.it
Sat Apr 24 17:24:36 UTC 2004
A month ago I moved the site of my school from a Win2k server to
Linux-Fedora.
The site was already hosted by Apache, PhP e MySQL and everything
worked fine (MySQL was for now left on a Windows server).
Some pages use GD graphics and the imagepng function; imagepng was
also used by a graphic counter I realized time ago.
Everything worked fine under Linux Fedora too, but a few days ago
the graphics crashed suddenly; in the browser (Mozilla or IE just the same)
you see only the red cross: image error.
I made some debugging and surely guilty it is the function
imagepng (or imagejpeg, it's just the same); strangest of all, imagepng
works perfectly when sending output on a file, e.g.
imagepng($im, 'figura.png');
but crashes when sending image to the browser (stdout):
imagepng($im);
Until now every try to correct the problem failed. Maybe a problem
of writing rights?
But why the problem arose suddenly? In the last days I only
changed some DNS and MySQL configuration, apparently nothing to do with
graphics.
I'm not even sure wheter it is a PhP, Apache or Linux problem.
Any idea?
Regards
Paolo Bonavoglia
---------------------------------------------------------------------------
Teacher of mathematics and computer science
Liceo Foscarini [Foscarini High School] - Venice, Italy
Webmaster http://www.liceofoscarini.it/
E-Mail paolo.bonavoglia at liceofoscarini.it
paolo_bonavoglia at virgilio.it
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