Should I use Camel Case or does it really matter?

JamesBarnsley · January 6, 2015, 1:30pm

Does it really matter if I use Camel Case or Underscore?

alex-w · January 6, 2015, 2:59pm

For readability I try to stick to the core style.

yiisoft/yii2/blob/master/docs/internals/core-code-style.md

Yii 2 Core Framework Code Style
===============================

The following code style is used for Yii 2.x core and official extensions development. If you want to pull-request code
into the core, consider using it. We aren't forcing you to use this code style for your application. Feel free to choose
what suits you better.

You can get a config for CodeSniffer here: https://github.com/yiisoft/yii2-coding-standards

## 1. Overview

Overall we're using [PSR-2](https://github.com/php-fig/fig-standards/blob/master/accepted/PSR-2-coding-style-guide.md)
compatible style so everything that applies to
[PSR-2](https://github.com/php-fig/fig-standards/blob/master/accepted/PSR-2-coding-style-guide.md) is applied to our code
style as well.

- Files MUST use either `<?php` or `<?=` tags.
- There should be a newline at the end of file.
- Files MUST use only UTF-8 without BOM for PHP code.
- Code MUST use 4 spaces for indenting, not tabs.

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JamesBarnsley · January 6, 2015, 4:52pm

Ok thanks, but do you think it is OK to use underscore, it will not break anything or cause any problems etc?

alex-w · January 6, 2015, 5:30pm

It wouldn’t cause any errors but might cause some unexpected results.

If you named an action


public function action_name()

it wouldn’t work as the framework is expecting


public function actionName()

JamesBarnsley · January 7, 2015, 7:17pm

alex-w:

It wouldn’t cause any errors but might cause some unexpected results.

If you named an action
public function action_name()
it wouldn’t work as the framework is expecting
public function actionName()

Ok thanks.