采用C在PHP应用程序的计算：值得吗？ [英] Using C for calculation in PHP application: is it worth it?

问题描述

我在需要重，有时计算一个PHP应用程序（我搜索了用户的操作记录，使许多经济分析在很长一段时间）。

I have a PHP application where sometimes heavy calculations are needed (I search for operations recorded by the users and make lots of economics analysis in long periods of time).

我想，以提高这些计算的速度，是值​​得重写用C这些计算部分？ （其中更快的语言这里，C是一个我所知道的最）。

I'd like to improve the speed of these calculations, is it worth it to rewrite these calculations parts in C? (Among the faster languages here, C is the one I know the most).

我已经决定这样做，但是当我在寻找如何去做我发现的这个堆栈溢出问题。这里有人评论为什么不使用PHP或C 3 的只写整个网站/网页，我知道我需要额外的信息。

I had already decided doing this, but when I was looking for "how to do it" I found this Stack Overflow question. There someone commented "Why not just write the whole site/page using either PHP or C?" and I know I need extra info.

推荐答案

如果你真的担心的表现，测量第一个如果一个PHP（或其他方式）的实现是不够快。也许你会发现，没有必要担心。如果真的是重计算（并没有为你的应用程序的发展，他们将在越来越复杂的机会），它可能是值得在一个单独的后端服务异步运行的计算。比如你的PHP前端可以派遣到C / C ++的服务，最终的结果放置在数据库中。这需要很多额外的逻辑，有人（客户端）将不得不定期轮询，而是很好地扩展。

If you are really worried about performance, measure first if a PHP (or other) implementation is fast enough. Possibly you will find out that there is no need to worry. If it is really heavy calculations (and there is a chance they will grow in complexity as your application evolves), it could be worth to run the calculations asynchronously in a separate backend service. For example your PHP frontend could dispatch to a C/C++ service, which eventually places results in a database. This requires lots of extra logic, somebody (the client) will have to poll regularly, but scales nicely.

有比性能考虑的其他要点：如果你的数学的复杂而不断增加，PHP可能不是一个好的环境来制定的。话又说回来，也许与前端和业务逻辑清晰的分离基于Java的堆可能只是从一个维修点会更好。

There is other points to be considered than performance: if your math is complex and keeps growing, PHP may not be a good environment to formulate it. Then again, maybe a Java-based stack with a clear separation of frontend and business logic could be better just from a maintenance point of view.

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