These variables are set from Admin -> Manage Gedcoms -> Edit Privacy and are stored in index/my.ged_priv.php.
$PRIV_HIDE - Global constant privacy level to hide the item to all users including the admin $PRIV_NONE - Global constant privacy level that only allows admin users to access the marked information. $PRIV_PUBLIC - Global constant privacy level that allows non-authenticated public visitors to view the marked information. $PRIV_USER - Global constant privacy level that only allows authenticated users to access the marked information. $MAX_RELATION_PATH_LENGTH - This setting is the maximum path length to allow users to view. The path length is defined as the number of steps it takes to get from 1 individual to another. The default value is 3, which would allow someone to access up to their second cousins.