A PHP Error was encountered

Severity: Notice

Message: Undefined variable: is_learning

Filename: student/header_my.php

Line Number: 66

Backtrace:

File: /home/cucas/webapps/v3cloud_gdut_new/application/views/student/header_my.php
Line: 66
Function: _error_handler

File: /home/cucas/webapps/v3cloud_gdut_new/application/views/index_notice_detail.php
Line: 1
Function: view

File: /home/cucas/webapps/v3cloud_gdut_new/application/controllers/Index.php
Line: 48
Function: view

File: /home/cucas/webapps/v3cloud_gdut_new/index.php
Line: 296
Function: require_once