Conversie codeigniter 4

app/Controllers/DownloadDB.php

@@ -0,0 +1,39 @@
+<?php
+
+namespace App\Controllers;
+
+use CodeIgniter\HTTP\ResponseInterface;
+
+class DownloadDB extends BaseController
+{
+    public function initController(\CodeIgniter\HTTP\RequestInterface $request, \CodeIgniter\HTTP\ResponseInterface $response, \Psr\Log\LoggerInterface $logger)
+    {
+        parent::initController($request, $response, $logger);
+
+        if (!defined('AUTHENTICATED') || AUTHENTICATED === false) {
+            die('NO ACCESS');
+        }
+    }
+
+    public function index(): ResponseInterface
+    {
+        $db = \Config\Database::connect();
+        $dbutil = \Config\Database::utils();
+
+        $filename = "backupDBOIS_" . date('YmdHis');
+
+        $prefs = [
+            'tables'     => [],   // Array of tables to backup
+            'ignore'     => [],   // List of tables to omit from the backup
+            'format'     => '',   // gzip, zip, txt
+            'filename'   => null, // File name - NEEDED ONLY WITH ZIP FILES
+            'add_drop'   => true, // Whether to add DROP TABLE statements to backup file
+            'add_insert' => true, // Whether to add INSERT data to backup file
+            'newline'    => "\n"  // Newline character used in backup file
+        ];
+
+        $backup = $dbutil->backup($prefs);
+
+        return $this->response->download($filename . '.sql', $backup);
+    }
+}