有惊无险的一次网站系统升级
Read Original本文详细记录了作者将个人博客系统从老旧环境升级到现代技术栈的过程。内容包括PHP从旧版本升级到7导致自定义程序崩溃后的代码重构，MySQL从4版强制升级到8后遇到的GBK编码乱码问题，以及通过mysqldump、自定义Lua脚本处理混合编码数据，最终成功将数据库转换为UTF-8编码的技术挑战和解决方案。
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