yii2-bootstrap/docs/code_style.md

Yii2 core code style

Brackets

class MyClass
{
	public function myClassMethod()
	{
		if($x)
		{
			// do it
		}
		else
		{
			// some code
		}
	}
}

Proposals

Use type hinting like

public function __construct(CDbConnection $connection)
{
	$this->connection = $connection;
}

instead of

public function __construct($connection)
{
	$this->connection = $connection;
}