Required Validation

Hello, this doesn't work for me either, or I am doing something wrong. I checked the issues on it in Github and they're all closed...
       

PHP Code:

$validation = \Config\Services::validation();
$validation->setRules([
    'username' => ['label' => 'Login', 'rules' => 'required_without[phone,email]|max_length[30]'],
    'password' => ['label' => 'Pass', 'rules' => 'required|min_length[4]|max_length[30]'],
    'first_name' => ['label' => 'Name', 'rules' => 'max_length[30]'],
    'email' => ['label' => 'Your email', 'rules' => 'permit_empty|required_without[username,phone]|valid_email|max_length[60]'],
    'phone' => ['label' => 'Your phone', 'rules' => 'permit_empty|required_without[username,email]|alpha_numeric|max_length[25]']
]);
if(!empty($_POST['submit'])) {
    if($validation->withRequest($this->request)->run()) {
        echo 'success';
    }
} 


Is something wrong here? I'm trying to force the user to write either username, email, or phone

You can see things I made with codeigniter here: itart.pro its not overly impressive as I have very little time to learn.