Laravel数组验证:在错误消息中使用字段索引

use Illuminate\Support\Facades\Validator;

$data = [
    'users' => [
        ['name' => 'John', 'email' => 'john@example.com'],
        ['name' => 'Jane', 'email' => 'jane@example.com'],
        ['name' => 'Invalid', 'email' => 'invalid_email'],
    ]
];

$rules = [
    'users.*.name' => 'required|string',
    'users.*.email' => 'required|email',
];

$messages = [
    'users.*.name.required' => 'The name field is required for user :index.',
    'users.*.name.string' => 'The name field must be a string for user :index.',
    'users.*.email.required' => 'The email field is required for user :index.',
    'users.*.email.email' => 'The email field must be a valid email address for user :index.',
];

$validator = Validator::make($data, $rules, $messages);

if ($validator->fails()) {
    $errors = $validator->errors();

    foreach ($errors->all() as $message) {
        echo $message . '<br>';
    }
}

The email field must be a valid email address for user 2.