A PHP Error was encountered

Severity: Warning

Message: Trying to access array offset on null

Filename: helpers/function_helper.php

Line Number: 4944

Backtrace:

File: /app/application/helpers/function_helper.php
Line: 4944
Function: _error_handler

File: /app/application/controllers/Products.php
Line: 255
Function: get_category_id_by_slug

File: /app/vendor/jaysparmar/codeigniter3/src/Bootstrap.php
Line: 153
Function: require_once

File: /app/index.php
Line: 13
Function: init

A PHP Error was encountered

Severity: Warning

Message: Cannot modify header information - headers already sent by (output started at /app/vendor/jaysparmar/codeigniter3/src/System/core/Exceptions.php:272)

Filename: helpers/url_helper.php

Line Number: 569

Backtrace:

File: /app/application/controllers/Products.php
Line: 257
Function: redirect

File: /app/vendor/jaysparmar/codeigniter3/src/Bootstrap.php
Line: 153
Function: require_once

File: /app/index.php
Line: 13
Function: init