DatabaseConfig: Implement Arrayable contract

src/Install/DatabaseConfig.php

@@ -11,7 +11,9 @@
 
 namespace Flarum\Install;
 
-class DatabaseConfig
+use Illuminate\Contracts\Support\Arrayable;
+
+class DatabaseConfig implements Arrayable
 {
     private $driver;
     private $host;
@@ -34,7 +36,7 @@ class DatabaseConfig
         $this->validate();
     }
 
-    public function getConfig(): array
+    public function toArray()
     {
         return [
             'driver'    => $this->driver,

src/Install/Steps/ConnectToDatabase.php

@@ -35,7 +35,7 @@ class ConnectToDatabase implements Step
 
     public function run()
     {
-        $config = $this->dbConfig->getConfig();
+        $config = $this->dbConfig->toArray();
         $pdo = (new MySqlConnector)->connect($config);
 
         $version = $pdo->query('SELECT VERSION()')->fetchColumn();

src/Install/Steps/StoreConfig.php

@@ -56,7 +56,7 @@ class StoreConfig implements Step, ReversibleStep
     {
         return [
             'debug'    => $this->debugMode,
-            'database' => $this->dbConfig->getConfig(),
+            'database' => $this->dbConfig->toArray(),
             'url'      => $this->baseUrl,
             'paths'    => $this->getPathsConfig(),
         ];