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A month ago I moved the site of my school from a Win2k server to a Linux-Fedora server.
The site was already hosted by Apache, PhP e MySQL and there was no problem in the change.
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.
(if I call directly the php script, Mozilla says: The image " .... file.php?Pagina=6" cannot be displayed because it contains errors.)
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@xxxxxxxxxxxxxxxxx paolo_bonavoglia@xxxxxxxxxxx
