才接触php，请问php做前端是怎么回事？
当时在看一个php和java比较贴的时候看到有几个人说php适合做前端，百度就是php做的前端。 据我了解php不是都是做后台的吗？ 前端不是html+css+js完成的吗？ 他们说的php做前端是怎么回事？
回复讨论(解决方案)
前后是个相对的概念，你最好给出原文的链接，他们的立场可能和你的不一样
就这个帖子
http://www.zhihu.com/question/20314377
后面的回复也几次提到php适合做前端，我就搞不懂是PHP做前端是怎么回事
这是原文：
总的来说，靠近用户的前端，使用PHP能够更快的完成前端频繁而琐碎的更新，自如的应对各种需求的变化。页面的结构调整、用户输入内容的基本验证、仅只和用户交互有关的简单逻辑等都很适合使用PHP来开发，甚至可以通过类似Smarty等模板技术将其页面的变动迁移到前端团队。而基本的业务逻辑和数据的更新采用Java开发，可以有效的提高复用度、提升性能和吞吐能力、规避安全问题等。而开发效率稍有降低换来的是可维护性的提升，发布速度慢就更不是问题了，因为通常对于基础业务逻辑的调整往往都是整体修改，并层层测试确认才能发布的。
所以，大型网站前端采用PHP后端采用Java，既好招人又好维护、系统稳定还性能高、连安全性都大大增加。代码复用、文档完备度居然也都改善了。让你在以上这些好处触手可及时，对架构师知识谱系在广度上要求更高一些这事根本就不是个问题。
显然他的立场是不一样的，他的前后端是项目的分层。所以他说 php 适合做 用户层，而 java 适合做 业务层和数据层
而你说的是整个 B/S，自然 html+css+js 是前端了
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