A PHP Error was encountered

Severity: 8192

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

Filename: models/Search_model.php

Line Number: 100

Backtrace:

File: /home/corporatehousing/public_html/application/models/Search_model.php
Line: 100
Function: trim

File: /home/corporatehousing/public_html/application/controllers/Search.php
Line: 20
Function: searchAllAdvance

File: /home/corporatehousing/public_html/index.php
Line: 225
Function: require_once