mail from www-data?

[joximu]

Yes - and my suggestion is: put a more siple script in the gui folder (with the right permissions like the others) and try if PHP is working in principal...

Maybe it's a mysql problem or something else.

You also could enable PHP logging (in the php.ini - error_log etc, but you should know what and where...)

My idea: does php work (just a <?php echo 'hello world' ?> is enough) - if this runs, then we have to focus on php(script)/db etc issues, if not, then its more a apache/suexec/cgi/php(config) thing...
you see may point?

/J