A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property CI_DB_mysqli_driver::$autoinit is deprecated

Filename: database/DB_driver.php

Line Number: 371

Backtrace:

File: /home/webservice/phpweb/www2.kuaikuenglish.com/application/controllers/Feedback.php
Line: 12
Function: model

File: /home/webservice/phpweb/www2.kuaikuenglish.com/index.php
Line: 315
Function: require_once