php imagepng problems

[Alexander Dalloz]

Am So, den 25.04.2004 schrieb Paolo Bonavoglia um 07:43:

>          I send again this message, since I'm not sure it is arrived to the 
> list yesterday.

It did arrive.

>          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

If creating png formatted pictures would not succeed I would say check
the permission of /tmp and /var/tmp to be chmod 1777.

Besides DNS and MySQL changes did you run any update or installation of
other applications, mainly not from FC1?

Alexander


-- 
Alexander Dalloz | Enger, Germany | GPG key 1024D/ED695653 1999-07-13
Fedora GNU/Linux Core 1 (Yarrow) on Athlon CPU kernel 2.4.22-1.2179.nptl
Sirendipity 15:36:13 up 6 days, 22:21, load average: 0.30, 0.26, 0.13 
                   [ Γνωθι σ'αυτον - gnothi seauton ]
             my life is a planetarium - and you are the stars
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