我不明白为什么 Wt 不合适.(您可以使用 Wt 而不使用它的小部件"，仅用于 HTTP 方面).

I don't understand why Wt don't fit. (you could use Wt without its "widgets", just for the HTTP aspect).

您可以制作一个 FastCGI 应用程序(它可以很好地适应许多现有的网络服务器).

You could make a FastCGI application (it would fit nicely into many existing web servers).

您还可以在 C++ 应用程序中嵌入一个 HTTP 服务器，使用一些 HTTP 服务器库，如 libonion、libmicrohttpd 或 poco

You could also embed an HTTP server inside your C++ application, using some HTTP server library like libonion, libmicrohttpd or the one inside poco

顺便说一句，PHP 有更好的替代品，例如 Opa、ocsigen、kayalang(不需要 C++).

BTW, there are better alternatives to PHP like Opa, ocsigen, kayalang (without requiring C++).