Perfetto ora li vedo:

Notice: Undefined variable: uploadfile_size in /opt/lampp/htdocs/www.ilprincipe.eu/moduli/esito_articoli.php on line 73
directory: ../upload

Warning: move_uploaded_file(../upload/17.jpeg) [function.move-uploaded-file]: failed to open stream: Permission denied in /opt/lampp/htdocs/www.ilprincipe.eu/moduli/esito_articoli.php on line 108

Warning: move_uploaded_file() [function.move-uploaded-file]: Unable to move '/tmp/phpGQ97fV' to '../upload/17.jpeg' in /opt/lampp/htdocs/www.ilprincipe.eu/moduli/esito_articoli.php on line 108

Significa che non ho i permessi??