A PHP Error was encountered

Severity: 8192

Message: explode(): Passing null to parameter #2 ($string) of type string is deprecated

Filename: helpers/functions_helper.php

Line Number: 299

Backtrace:

File: /home/pkr/public_html/application/helpers/functions_helper.php
Line: 299
Function: explode

File: /home/pkr/public_html/application/controllers/Web.php
Line: 164
Function: limit_word

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