Stuff i guess ?

database/Migration.php

@@ -0,0 +1,16 @@
+<?php
+
+namespace App\Database;
+
+abstract class Migration
+{
+    protected \PDO $pdo;
+
+    public function __construct(\PDO $pdo)
+    {
+        $this->pdo = $pdo;
+    }
+
+    abstract public function up();
+    abstract public function down();
+}