Why does PHP_CodeSniffer only allow me to have a Magento copyright at the top of my code?

Question

When I try to use my own copyright I get this warning when running phpcs:

"0: line: 3, col: 1, Copyright is missing or has wrong format"

But if I use Magento copyright, I get no warning.

No Warning:

/**
 * Copyright © Magento, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */

Warning:

/**
 * Copyright © MyCompany, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */

Actual Code

<?php
/**
 * Copyright © MyCompany All rights reserved.
 * See License for license details.
 */

namespace MyCompany\MyApp\ViewModel;

use Magento\Framework\View\Element\Block\ArgumentInterface;
use Magento\Framework\View\Element\Template;

/**
 * Gets current products Categories
 */
class CalculatorLogic extends Template implements 

ArgumentInterface
{
    /**
     * @param Registry $registry
     * @param Category $categoryModel
     */
    public function __construct(
        \Magento\Framework\Registry $registry,
        \Magento\Catalog\Model\Category $categoryModel
    ) {
        $this->registry = $registry;
        $this->categoryModel = $categoryModel;
    }
    
    /**
     * Gets current products Categories
     *
     * @return Category[]
     */
    public function getProductCatagory()
    {
        $product = $this->registry->registry('current_product');
        $categories = $product->getCategoryIds(); /*will return category ids array*/
        $arr =[];
        foreach ($categories as $category) {
            $cat = $this->categoryModel->load($category);
            $arr[] = $cat->getName();
        }
        return $arr;
    }
}

phpcs results

{"totals":{"errors":0,"warnings":1,"fixable":0},"files":{"\/var\/www\/html\/mage\/app\/code\/MyComany\/MyApp\/ViewModel\/CalculatorLogic.php":{"errors":0,"warnings":1,"messages":[{"message":"Copyright is missing or has wrong format","source":"Magento2.Legacy.Copyright.FoundCopyrightMissingOrWrongFormat","severity":5,"fixable":false,"type":"WARNING","line":3,"column":1}]}}}

Answer 1

try this code :

<?php
/**
 * Copyright © MyCompany All rights reserved.
 * See COPYING.txt for license details.
 */
namespace MyCompany\MyApp\ViewModel;

Answer 2

This is because of Magento uses its own CopyrightSniff where they require text 'Copyright © Magento' :)

Answer 3

overwrite vendor/magento/magento-coding-standard/Magento2Framework/Sniffs/Header/CopyrightSniff.php file's process. giving

public function process(File $phpcsFile, $stackPtr)
{
    return;
}

please do it if you are bother with text error.