PHP框架里面为什么要用模板引擎？如果不用有什么后果？
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PHP框架里面为什么要用模板引擎？如果不用有什么后果？
PHP是可以和HTML代码混写的语言，这种写法写点小项目还行，但是随着代码量的增大，代码打开一大片全是标签，
同时，这样的写法会让代码的复用显得很麻烦。
模板引擎出现实现了php代码和html代码的分离， 让代码结构看起来更加的清晰。
另外模板引擎让代码的复用也变得简洁容易。
总之，模板引擎的出现只是希望代码工作变得更简单方便，至于你用不用都不会造成任何后果。
模板引擎是为了让不懂PHP的人更方便的写网页用的。用模板引擎我觉得最大的好处就是，有可能你这套模板放在PHP里面运行，突然你想放到Python里面运行，可能只要找一个相应的解析库就好了，而不用去改模板代码。当然其实PHP本身就能成为一套模板语言，所以不用模板引擎我觉得也没什么太严重的后果。
我是前端，部门有条原则，不参与任何也没逻辑，不修改任何php
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