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 - 三角函數值 - 前往 https://www.knewstep.com/wp-content/uploads/2020/01/SU_Maths_Day-4_三角函數的圖形與性質_Teacher-Lam_Worksheet.pdf
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並前往 https://www.knewstep.com/wp-content/uploads/2020/01/SU_Maths_Day-4_%E4%B8%89%E8%A7%92%E5%87%BD%E6%95%B8%E7%9A%84%E5%9C%96%E5%BD%A2%E8%88%87%E6%80%A7%E8%B3%AA_Teacher-Lam_Worksheet.pdf

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