coding standards in yii framework

is there any coding standard which follows yii framework, and where 开发者_开发百科it is specified

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You can find them in Yii basic Documents

Yii Basic Convention

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The following code style is used for Yii 1.x development: https://github.com/yiisoft/yii/wiki/Core-framework-code-style

CodeSniffer Coding Standard Repo: https://github.com/Ardem/yii-coding-standard

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Just you can see core files in this framework.

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Here is the Yii2 coding standard.

https://github.com/yiisoft/yii2/wiki/Core-framework-code-style