Indentation Style (Code style) Magento 2

Question

Hey, I wanna check if there is some documentation about the code style for magento, specially regarding the best practices Indentation style for magento.

I will give 2 examples, and I wanna also know the opion of the community about it.

1. Using PSR1/PS2 from phpstorm code style. (I believe it it's similar to the Magento 2)

$variable1 = "test";
$variableVariable2 = "test";
$variableVariable3 = "test";
$variableVariableVariable4 = "test";

2. Some custom code style that I found. (I don't think it's common see it on Magento 2 projects)

$variable1                 = "test";
$variableVariable2         = "test";
$variableVariable3         = "test";
$variableVariableVariable4 = "test";

I looked the documentation and I didn't find anything related to it. But based on what I saw in the project, it was buit using the Option 1. I just wanna make sure that is the option 1 the correct one, or if there is some sense about it, some documentation or article, anything is welcome.

Thanks.

Answer 1

Configuring for Magento Coding Standard
Verify it is installed with vendor/bin/phpcs -i . You should see Magento2 in the output. Go to PHPStorm preferences > Editor > Inspections, and in the adjacent window go to PHP > Quality Tools > PHP_CodeSniffer validation. Under the Coding Standard dropdown, select Magento2
Refer to this link:- https://mirasvit.com/blog/guide-for-setting-up-phpstorm-for-magento-2-developments.html

Answer 2

There PHP code sniffer tool available which contain the sets of Magento rules. You can install it within Magento project: https://github.com/magento/magento-coding-standard.

All suggestions are fixable using the CLI command.