How to clean your PHP code

This course refers to the software engineer's principles from Robert C. Martin's Clean Code book and applies to PHP. This is not a style guide. This is a guide to developing readable, reusable, and reconfigurable PHP software. Not all of the principles here must be followed, and few are even universally accepted. Although these are just guidelines, they are all summarized by the Clean Code authors over the years.

本文受到 clean-code-javascript 的启发

注意事项

虽然很多开发者还在使用PHP5，但是本文中的大部分示例的运行环境需要PHP 7.1+。

翻译说明

翻译完成度100%，最后更新时间2017-12-25。本文由 php-cpm 基于 yangweijie版本 的clean-code-php翻译并同步大量原文内容。

原文更新频率较高，我的翻译方法是直接用文本比较工具逐行对比。优先保证文字内容是最新的，再逐步提升翻译质量。

阅读过程中如果遇到各种链接失效、内容老旧、术语使用错误和其他翻译错误等问题，欢迎大家积极提交PR。