升級到 WordPress 6.3 遇到的問題
source link: https://blog.gslin.org/archives/2023/08/09/11290/%e5%8d%87%e7%b4%9a%e5%88%b0-wordpress-6-3-%e9%81%87%e5%88%b0%e7%9a%84%e5%95%8f%e9%a1%8c/
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升級到 WordPress 6.3 遇到的問題
WordPress 6.3 出了：「WordPress 6.3 “Lionel”」，順手按了升級就爛掉了，發現是 admin 介面爛掉，網站本身還能瀏覽，先翻出 PHP 的錯誤訊息：
2023/08/09 04:52:32 [error] 845702#845702: *1350433 FastCGI sent in stderr: "PHP message: PHP Fatal error: Uncaught ArgumentCountError: Too few arguments to function W3TC\Util_Environment::is_dbcluster(), 0 passed in /srv/blog.gslin.org/public/wp-content/db.php on line 56 and exactly 1 expected in /srv/blog.gslin.org/public/wp-content/plugins/w3-total-cache/Util_Environment.php:176
順著這個訊息找到這個算新的討論：「Fatal error in Util_Environment」，看起來跟 W3 Total Cache 有關。
(話說這個錯誤訊息還比較新，Kagi 上面找不到，後來是在 DuckDuckGo 上找到)
解法就比較粗暴一點，先到 wp-content/plugins 下讓 W3 Total Cache 失效：
sudo chmod 000 w3-total-cache
跑完升級後會出現錯誤訊息提示 W3 Total Cache 沒有啟用，這時候再開回來：
sudo chmod 755 w3-total-cache
後續把 cache 都清掉就正常了。
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