File upload leads in 'Class "App\Controller\File" not found'

Hi everyone,
I try to upload a file via an upload form and I get the error message 'Class "App\Controllers\File" not found.
The file is not uploaded to the file system.
My Code:

PHP Code:

<?php

namespace App\Controllers;

class Invoicing extends BaseController
{
    protected $helpers = ['form', 'filesystem'];
    
    public function index()
    {
        $validationRule = [
            'invoicing_file' => [
                'label' => 'Invoicing File',
                'rules' => [
                    'uploaded[invoicing_file]',
                    'mime_in[invoicing_file,application/pdf]',
                ],
            ],
        ];
        if (! $this->validate($validationRule)) {
            $data = ['errors' => $this->validator->getErrors()];

            return view('header').view('invoicing/invoicing_start', $data).view('footer');
        }
        
        $upload_file = $this->request->getFile('invoicing_file');

        if (! $upload_file->hasMoved()) {
            $filepath = WRITEPATH . 'uploads/' . $upload_file->store();
            
            $data = ['uploaded_fileinfo' => new File($filepath)];

            return view('header').view('invoicing/invoicing_success', $data).view('footer');
        }
    }
    
} 


Windows Server
XAMPP
htdocs: public Folder

Is someone able to support me with this issue?

THX in advance.

See https://codeigniter4.github.io/CodeIgnit...namespaces
https://www.youtube.com/watch?v=ZoOTdYb150M

ci-phpunit-test | CodeIgniter Testing Guide | CodeIgniter 3 to 4 Upgrade Helper

Hi,
ich habe das aus der Codeigniter4 Doku und verstehe nicht, was das Problem ist.

Deshalb meine Frage.

Namespaces are PHP's basic feature. It is not CI4 specific matter.

Read:
- https://www.w3schools.com/php/php_namespaces.asp
- https://learncodeigniter.net/codeigniter...igniter-4/
- https://www.php.net/manual/en/language.n...ionale.php

ci-phpunit-test | CodeIgniter Testing Guide | CodeIgniter 3 to 4 Upgrade Helper

Now I got your Point.

PHP Code:

<?php

new File($filepath) 


das gehört nicht zu einer CI4 eigenen Klasse, sondern ist eigentlich ein Model o.ä.

Darüber bin ich tatsächlich nicht gestolpert.

Danke.