A PHP Error was encountered

Severity: Notice

Message: Undefined variable: video_id

Filename: controllers/Articles.php

Line Number: 238

Backtrace:

File: /home/sehaonline/public_html/application/controllers/Articles.php
Line: 238
Function: _error_handler

File: /home/sehaonline/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: Cannot modify header information - headers already sent by (output started at /home/sehaonline/public_html/system/core/Exceptions.php:271)

Filename: helpers/url_helper.php

Line Number: 564

Backtrace:

File: /home/sehaonline/public_html/application/controllers/Articles.php
Line: 241
Function: redirect

File: /home/sehaonline/public_html/index.php
Line: 315
Function: require_once