A PHP Error was encountered

Severity: Notice

Message: Undefined index: id

Filename: controllers/Course.php

Line Number: 20

Backtrace:

File: C:\Inetpub\vhosts\easyshiksha.com\httpdocs\online_courses\application\controllers\Course.php
Line: 20
Function: _error_handler

File: C:\Inetpub\vhosts\easyshiksha.com\httpdocs\online_courses\index.php
Line: 315
Function: require_once