A PHP Error was encountered

Severity: Notice

Message: Undefined index: select

Filename: views/result_html.php

Line Number: 198

Backtrace:

File: /www/wwwroot/diff-bt.com/application/views/result_html.php
Line: 198
Function: _error_handler

File: /www/wwwroot/diff-bt.com/application/controllers/Results.php
Line: 50
Function: view

File: /www/wwwroot/diff-bt.com/index.php
Line: 315
Function: require_once