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

台鐵車站情報站 - 頻率調變連續波fmcw - 前往 https://chih-sheng-huang821.medium.com/調頻連續波雷達-frequency-modulated-continuous-wave-fmcw-radars-測距-測速原理-1-2-cc6ac4b501b4
台鐵車站情報站
台灣鐵路發展超過百年，有完整的環島路線，每個車站都成為當地發展的重要指標，火車站周圍有什麼特別的，看看網紅們怎麼說

Search

您即將離開本站

並前往 https://chih-sheng-huang821.medium.com/%E8%AA%BF%E9%A0%BB%E9%80%A3%E7%BA%8C%E6%B3%A2%E9%9B%B7%E9%81%94-frequency-modulated-continuous-wave-fmcw-radars-%E6%B8%AC%E8%B7%9D-%E6%B8%AC%E9%80%9F%E5%8E%9F%E7%90%86-1-2-cc6ac4b501b4

是否確定要離開？