Rule source on GitHub

DowngradeMatchToSwitchRector

Downgrade match() to switch()

 class SomeClass
 {
     public function run()
     {
-        $message = match ($statusCode) {
-            200, 300 => null,
-            400 => 'not found',
-            default => 'unknown status code',
-        };
+        switch ($statusCode) {
+            case 200:
+            case 300:
+                $message = null;
+                break;
+            case 400:
+                $message = 'not found';
+                break;
+            default:
+                $message = 'unknown status code';
+                break;
+        }
     }
 }

Configure your rector.php:

<?php

use Rector\Config\RectorConfig;
use Rector\DowngradePhp80\Rector\Expression\DowngradeMatchToSwitchRector;

return RectorConfig::configure()
    ->withRules([
        DowngradeMatchToSwitchRector::class,
    ]);