Severity: Notice
Message: Undefined index: p_teacher_v
Filename: controllers/Teacher.php
Line Number: 667
Backtrace:
File: /var/www/vhosts/restest.osms.vn/httpdocs/application/controllers/Teacher.php
Line: 667
Function: _error_handler
File: /var/www/vhosts/restest.osms.vn/httpdocs/index.php
Line: 257
Function: require_once