dev400

$nav = [
    'items' => Yii::$app->user->isGuest ? '' : (
                    ['label' => 'Главная', 'url' => ['/site/index']] 
                ),
                Yii::$app->user->isGuest ? "" : (
                    ['label' => 'Сотрудники', 'url' => ['/site/about']]),
                
                Yii::$app->user->isGuest ? "" : (
                    ['label' => 'Лиды', 'url' => ['/site/contact']]),
                
                Yii::$app->user->isGuest ? "" : (
                    ['label' => 'Заказы', 'url' => ['/site/contact']]),
                
                Yii::$app->user->isGuest ? "" : (
                    ['label' => 'Настройки', 'url' => ['/site/contact']]),
];

if (Yii::$app->user->isGuest) {
    $nav = [
        'items' => [],
    ];
} else {
    $nav = [
        'items' => [
            ['label' => 'Главная', 'url' => ['/site/index']] ,
            ['label' => 'Сотрудники', 'url' => ['/site/about']],
            ['label' => 'Лиды', 'url' => ['/site/contact']],
            ['label' => 'Заказы', 'url' => ['/site/contact']],
            ['label' => 'Настройки', 'url' => ['/site/contact']],
        ],
    ];
}

<?php
NavBar::begin([
    'brandLabel' => Yii::$app->name,
    'brandUrl' => Yii::$app->homeUrl,
    'options' => [
        'class' => 'navbar-default navbar-fixed-top',
    ],
]);
$menuItems = [
    ['label' => 'Обо мне', 'url' => ['/site/about']],
    ['label' => 'Контакты', 'url' => ['/site/contact']],
];
if (Yii::$app->user->isGuest) {
    $menuItems[] = ['label' => 'Регистрация', 'url' => ['/site/signup']];
    $menuItems[] = ['label' => 'Вход', 'url' => ['/site/login']];
} else {
    $menuItems[] = ['label' => 'Выйти (' . Yii::$app->user->identity->username . ')', 'url' => ['/site/logout'], 'linkOptions' => ['data-method' => 'post']];
}
echo Nav::widget([
    'options' => ['class' => 'navbar-nav navbar-right'],
    'items' => $menuItems,
]);
NavBar::end();
?>

public function rules()
{
    return [
        [
            'phone',
            'app\components\validators\PhoneValidator'
        ]
    ];
}

public function validatePhone($attribute, $params)
    {
        if (!$this->hasErrors()) {
            $user = User::findOne(['phone' => $this->$attribute]);

            if ($user ) {
                $this->addError($attribute, 'Телефон занят');
        }
    }

$authManager = Yii::$app->authManager;
$authManager->removeAll();
$guestSignUp = $authManager->createPermission('guest-sign-up');
$authManager->add($guestSignUp);
$userRoleRule = new UserRoleRule();
$authManager->add($userRoleRule);
$guest = $authManager->createRole('guest');
$authManager->add($guest);
$authManager->addChild($guest, $guestSignUp);

if (\Yii::$app->user->can('guest-sign-up')) {
  echo Html::a('sign up', ['/sign-up']);
}

<?php
    namespace common\components\rbac;

    use common\modules\user\models\User;
    use yii;
    use yii\rbac\Item;
    use yii\rbac\Rule;

    /**
     * Class UserRoleRule
     * @package common\components\rbac
     */
    class UserRoleRule extends Rule
    {
        public $name = 'userRoleRule';

        public function execute($user, $item, $params)
        {
            $role = Yii::$app->user->isGuest ? User::ROLE_GUEST : User::identity()->role;

            if ($item->name === 'developer') {
                return $role == User::ROLE_DEVELOPER;
            } elseif ($item->name === 'admin') {
                return $role >= User::ROLE_ADMIN;
            } elseif ($item->name === 'manager') {
                return $role == User::ROLE_MANAGER || $role >= User::ROLE_ADMIN;
            } elseif ($item->name === 'author') {
                return $role == User::ROLE_AUTHOR || $role >= User::ROLE_ADMIN;
            } elseif ($item->name === 'user') {
                return $role == User::ROLE_USER || $role >= User::ROLE_ADMIN;
            } elseif ($item->name === 'guest') {
                return $role == User::ROLE_GUEST || $role >= User::ROLE_ADMIN;
            }

            return false;
        }
    }