说明：  PHP，即“PHP: Hypertext Preprocessor”，是一种被广泛使用的开放源代码多用途脚本语言，尤其适用于 web 开发并可以嵌入到 HTML 中去。其语法利用了 C，Java 和 Perl，非常容易学习。该语言的主要目标是让 web 开发人员可以很快写出动态生成的网页，但 PHP 的功能远不止如此。
(PHP, the "PHP: Hypertext Preprocessor", is a widely used open source multipurpose scripting language, especially for web development and can be embedded into HTML. Its syntax takes advantage of C, Java, and Perl, and is very easy to learn. The main goal of the language is to enable Web developers to quickly write dynamically generated web pages, but PHP's function is far more than this.)