设置
Preferences -> Editor -> Code Style -> PHP : Set from… -> Predefined Style : PSR1/PSR2
快捷键快速格式化
ctrl + alert + l
PHP_CodeSniffer 文档:https://github.com/squizlabs/PHP_CodeSniffer/blob/master/README.md
更多安装文档:https://segmentfault.com/a/1190000019136556