How to select random values from an array of dropdowns in Laravel Dusk?

I am new to Laravel Dusk, and currently working on a simple project where you can add multiple dropdowns. The dropdowns have a name like name = "item[]". How can I select each dropdown and select random options?

I have tried :

$items = $browser->elements('input[name^="item[]"');

foreach ($items as $item) {
    $item->select(); // Select random options
}

but it doesn't work. There's no error, test and assertions are OK but it's not selecting values from the dropdowns.

via Chebli Mohamed