isAllowedTo

Fatal error if they cannot. Uses allowedTo() to check if the user is allowed to do permission. Checks the passed boards or current board for the permission. If $any is true, the user only needs permission on at least one of the boards to pass If they are not, it loads the Errors language file and shows an error using $txt['cannot_' . $permission]. If they are a guest and cannot do it, this calls is_not_guest().