PHP,PSR开发规范 https://github.com/hfcorriez/fig-standards/tree/zh_CN/%E6%8E%A5%E5%8F%97 PSR-1-basic-coding-standard.md optimize PSR-1 PSR-2-coding-style-guide.md Update PSR-2-coding-style-guide.md PSR-3-logger-interface.md optimize PSR-3 PSR-4-autoloader.md Fix and improve PSR-4