The preferred way to install this extension is through composer.

Either run

composer require --prefer-dist voskobovich/yii2-base-toolkit "~2.0"

or add

"voskobovich/yii2-base-toolkit": "~2.0"

to the require section of your composer.json file.

To check the code:

./vendor/bin/phpcs -s --encoding=utf-8 --extensions=php .

To auto fix the code format:

./vendor/bin/php-cs-fixer fix