说明：  PHP即“超文本预处理器”，是一种通用开源脚本语言。PHP是在服务器端执行的脚本语言，与C语言类似，是常用的网站编程语言。PHP独特的语法混合了C、Java、Perl以及 PHP 自创的语法。利于学习，使用广泛，主要适用于Web开发领域。
(PHP, a "hypertext preprocessor," is a common open source scripting language. PHP is a scripting language performed on the server side, similar to the C language, and is a commonly used language of web programming. PHP's unique syntax is a mix of C, Java, Perl, and PHP's own syntax. Learning, widely used, mainly for the field of Web development.)