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 - 傅立葉轉換題目 - 前往 http://msvlab.hre.ntou.edu.tw/grades/Engineering-Mathematics-100-2/2018.06.22-工數第三次大考/2018第三次大考題目彙整-2018.06.21.pdf
疑難雜症萬事通
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並前往 http://msvlab.hre.ntou.edu.tw/grades/Engineering-Mathematics-100-2/2018.06.22-%E5%B7%A5%E6%95%B8%E7%AC%AC%E4%B8%89%E6%AC%A1%E5%A4%A7%E8%80%83/2018%E7%AC%AC%E4%B8%89%E6%AC%A1%E5%A4%A7%E8%80%83%E9%A1%8C%E7%9B%AE%E5%BD%99%E6%95%B4-2018.06.21.pdf

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