A PHP Error was encountered
Severity: Notice
Message: Undefined offset: 0
Filename: course/teacher_course_online_detail.php
Line Number: 96
Backtrace:
File: /usr/local/src/public/application/views/course/teacher_course_online_detail.php
Line: 96
Function: _error_handler
File: /usr/local/src/public/application/views/course/template_lecture.php
Line: 53
Function: view
File: /usr/local/src/public/application/controllers/khoahoc/views/Course_home.php
Line: 673
Function: view
File: /usr/local/src/public/index.php
Line: 315
Function: require_once
A PHP Error was encountered
Severity: Notice
Message: Undefined offset: 0
Filename: course/teacher_course_online_detail.php
Line Number: 96
Backtrace:
File: /usr/local/src/public/application/views/course/teacher_course_online_detail.php
Line: 96
Function: _error_handler
File: /usr/local/src/public/application/views/course/template_lecture.php
Line: 53
Function: view
File: /usr/local/src/public/application/controllers/khoahoc/views/Course_home.php
Line: 673
Function: view
File: /usr/local/src/public/index.php
Line: 315
Function: require_once