我们的目的 ========== 现在有很多各种各样的PHP框架，但他们没有一个像Phalcon一样（真的，在这点上请相信我） 几乎所有的程序员都喜欢使用框架，这主要是因为框架提供了很多的功能，已经经过了大量的测试，因此保持代码DRY（不要重复造轮子）。然而，框架本身需要包含大量的文件来解释和执行实际应用中的每个请求，因此会降低应用程序的性能，影响用户体验。 The Question ------------ 为什么我们不能有这样一个框架，保持它的优势的同时，没有或者很少有缺点呢？ 这就是为什么Phalcon诞生了！ 在过去的几个月中，我们已经广泛地研究了PHP的行为，调查区域为显着优化（大或小）。 通过Zend引擎的理解，我们设法消除不必要的验证，压缩的代码，进行优化和生成的 低级别的解决方案，从而使Phalcon实现最大的性能。 Why? ---- * The use of frameworks has become mandatory in professional development with PHP * 框架提供了结构化的理念，以轻松维护项目，编写更少的代码，使工作变得更有趣 Inner workings of PHP? ---------------------- * PHP是一种动态的和弱变量类型语言。每次一个二进制运算（例如，2+“2”），PHP就会检查操作数的类型来进行类型转换 * PHP是解释型语言。主要的缺点是性能上的损失 * 每一个请求，它必须首先解释. * 如果不使用字节码缓存（如APC），则任何时间的任何一个请求它都会进行语法检查 How traditional PHP frameworks work? ------------------------------------ * Many files with classes and functions are read on every request made. Disk reading is expensive in terms of performance, especially when the file structure includes deep folders * Modern frameworks use lazy loading (autoload) to increase performance (for load and execute only the code needed) * Continuous loading or interpreting is expensive and impacts performance * The framework code does not change very often, therefore an application needs to load and interpret it every time a request is made How does a PHP C-extension work? -------------------------------- * C extensions are loaded together with PHP one time on the web server's daemon start process * Classes and functions provided by the extension are ready to use for any application * The code isn't interpreted because is already compiled to a specific platform and processor How does Phalcon work? ---------------------- * Components are loosely coupled. With Phalcon, nothing is imposed on you: you're free to use the full framework, or just some parts of it as a glue components. * Low-level optimizations provides the lowest overhead for MVC-based applications * Interact with databases with maximum performance by using a C-language ORM for PHP * Phalcon directly accesses internal PHP structures optimizing execution in that way as well Conclusion ---------- Phalcon is an effort to build the fastest framework for PHP. You now have an even easier and robust way to develop applications without be worrying about performance. Enjoy!