CookieSameSiteConstantRector

Replace the "same site" magic string of Cookie with a Cookie constant

 use Symfony\Component\HttpFoundation\Cookie;

-$cookie = Cookie::create('name', 'value', 0, '/', null, false, true, false, 'lax');
+$cookie = Cookie::create('name', 'value', 0, '/', null, false, true, false, Cookie::SAMESITE_LAX);

Configure your rector.php:

<?php

use Rector\Config\RectorConfig;
use Rector\Symfony\HttpFoundation\Rector\New_\CookieSameSiteConstantRector;

return RectorConfig::configure()
    ->withRules([
        CookieSameSiteConstantRector::class,
    ]);
PACKAGE:  symfony/http-foundation >=4.2

Other rules in the symfony/http-foundation set