What is different between magento-coding-standard and marketplace-eqp?

Question

In Magento Marketplace Technical Review It will Check The Coding standard of the Extension So I Need To Check in My Local Machine

But I have Found 3 Solution and I am confused what is better Solution.

1 magento-coding-standard

2 marketplace-eqp

3 extdn-phpcs

I am developing my extension for Magento 2.3.* So I need To setup Coding Standard in my local machine for checking the quality of my extension`s code

I Need to Know the Difference Between this Two.

Which is better

standalone application for checking

or

Use within your Magento 2 project

Provide me Simple steps to install Magento coding standard.

Answer 1

1 magento-coding-standard 2 marketplace-eqp 3 extdn-phpcs

1 replaced 2 so use 1. 3 is something else. Use 1.

Use within your Magento 2 project

This approach. However just scan the folder you are working on eg app/code/Vendor/Module

Install via composer

composer require magento/magento-coding-standard

Scan with something like this

vendor/bin/phpcs --standard=Magento2 app/code/Xigen/Vehicle

Maybe you need to update phpcs

composer require squizlabs/php_codesniffer:^3.4