A PHP Error was encountered

Severity: Notice

Message: Undefined variable: product_id

Filename: product/product_details.php

Line Number: 422

Backtrace:

File: /var/www/html/application/views/product/product_details.php
Line: 422
Function: _error_handler

File: /var/www/html/application/third_party/MX/Loader.php
Line: 357
Function: include

File: /var/www/html/application/third_party/MX/Loader.php
Line: 300
Function: _ci_load

File: /var/www/html/application/controllers/Product.php
Line: 230
Function: view

File: /var/www/html/index.php
Line: 315
Function: require_once