A PHP Error was encountered

Severity: Notice

Message: Trying to access array offset on value of type null

Filename: frontend/Mcategory.php

Line Number: 17

Backtrace:

File: /home/maylanh2/public_html/application/models/frontend/Mcategory.php
Line: 17
Function: _error_handler

File: /home/maylanh2/public_html/application/controllers/Sanpham.php
Line: 106
Function: category_id

File: /home/maylanh2/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Notice

Message: Trying to access array offset on value of type null

Filename: frontend/Mcategory.php

Line Number: 28

Backtrace:

File: /home/maylanh2/public_html/application/models/frontend/Mcategory.php
Line: 28
Function: _error_handler

File: /home/maylanh2/public_html/application/controllers/Sanpham.php
Line: 108
Function: category_name

File: /home/maylanh2/public_html/index.php
Line: 315
Function: require_once

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