A PHP Error was encountered

Severity: Notice

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

Filename: models/Site_model.php

Line Number: 233

Backtrace:

File: /var/www/html/KOL/voice/application/models/Site_model.php
Line: 233
Function: _error_handler

File: /var/www/html/KOL/voice/application/controllers/Exitpage.php
Line: 109
Function: get_keyword_cat

File: /var/www/html/KOL/voice/public/index.php
Line: 319
Function: require_once

A PHP Error was encountered

Severity: Notice

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

Filename: models/Site_model.php

Line Number: 233

Backtrace:

File: /var/www/html/KOL/voice/application/models/Site_model.php
Line: 233
Function: _error_handler

File: /var/www/html/KOL/voice/application/controllers/Exitpage.php
Line: 110
Function: get_keyword_cat

File: /var/www/html/KOL/voice/public/index.php
Line: 319
Function: require_once

疑難雜症萬事通 - 數a數b同時考 - 前往 https://www.twstudy.com/blog/high_school/5分鐘看懂111年學測數學A、數學B的差別！高二學生該如何選擇修哪一個？
疑難雜症萬事通
在網路上遇到任何問題都可以在這邊找找看唷

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您即將離開本站

並前往 https://www.twstudy.com/blog/high_school/5%E5%88%86%E9%90%98%E7%9C%8B%E6%87%82111%E5%B9%B4%E5%AD%B8%E6%B8%AC%E6%95%B8%E5%AD%B8A%E3%80%81%E6%95%B8%E5%AD%B8B%E7%9A%84%E5%B7%AE%E5%88%A5%EF%BC%81%E9%AB%98%E4%BA%8C%E5%AD%B8%E7%94%9F%E8%A9%B2%E5%A6%82%E4%BD%95%E9%81%B8%E6%93%87%E4%BF%AE%E5%93%AA%E4%B8%80%E5%80%8B%EF%BC%9F

是否確定要離開？