Chybová hláška:
Warning: require_once(DB.php) [function.require-once]: failed to open stream: No such file or directory in ... on line 7

Fatal error: require_once() [function.require]: Failed opening required 'DB.php' (include_path='.:./include:/usr/share/pear') in ... on line 7

nainstalovat php-pear a php-db
sudo apt-get install php-pear php-db