A PHP Error was encountered

Severity: 8192

Message: mysqli::real_escape_string(): Passing null to parameter #1 ($string) of type string is deprecated

Filename: mysqli/mysqli_driver.php

Line Number: 401

Backtrace:

File: /home/bridgefortalent/public_html/collagebhai/user/application/models/CollegeviewModel.php
Line: 258
Function: like

File: /home/bridgefortalent/public_html/collagebhai/user/application/controllers/CollegeviewController.php
Line: 237
Function: filter_state

File: /home/bridgefortalent/public_html/collagebhai/user/index.php
Line: 315
Function: require_once