syntax error, unexpected 'if' (T_IF), expecting ']'

помогите пожалуйста с ошибкой:

syntax error, unexpected 'if' (T_IF), expecting ']'
1. in /var/www/u0498223/public_html/coinfactory.pw/views/layouts/main.php at line 53
44                                    <?
45                     $menuItems = array_filter([
46                         // Important: you need to specify url as 'controller/action',
47                         // not just as 'controller' even if default action is used.
48                         ['label' => 'Главная', 'url' => ['/site/index'], 'options' => ['class' => 'menu-item',]],
49                         ['label' => 'О Нас', 'url' => ['/site/about'], 'options' => ['class' => 'menu-item',]],
50                         ['label' => 'Контакты', 'url' => ['/site/contact'], 'options' => ['class' => 'menu-item',]],
51                         Yii::$app->user->isGuest ? '': ['label' => 'Кабинет', 'url' => ['/cabinet/index'], 'options' => ['class' => 'menu-item',]],
52                         Yii::$app->user->isGuest ? '': ['label' => 'Партнёрам', 'url' => ['/partner/index'], 'options' => ['class' => 'menu-item',]],
53                         if (Yii::$app->user->isGuest):
54                             ['label' => 'Регистрация', 'url' => ['/user/reg'], 'options' => ['class' => 'menu-item']];
55                             ['label' => 'Войти', 'url' => ['/user/login'], 'options' => ['class' => 'menu-item']];
56                         else:
57                             ['label' => 'Выйти ('.Yii::$app->user->identity['username'].')',
58                              'url' => ['/user/logout'],
59                              'template' => '<a href="{url}", data-method="post">{label}</a>',
60                              'options' => ['class' => 'menu-item',],
61                              'linkOptions' => ['data-method' => 'post']
62                             ];

2. yii\base\ErrorHandler::handleFatalError()

Совсем не вижу не правильно поставленные скобки.

44 <?
45 $menuItems = array_filter([
46 // Important: you need to specify url as 'controller/action',
47 // not just as 'controller' even if default action is used.
48 ['label' => 'Главная', 'url' => ['/site/index'], 'options' => ['class' => 'menu-item',]],
49 ['label' => 'О Нас', 'url' => ['/site/about'], 'options' => ['class' => 'menu-item',]],
50 ['label' => 'Контакты', 'url' => ['/site/contact'], 'options' => ['class' => 'menu-item',]],
51 Yii::$app->user->isGuest ? '': ['label' => 'Кабинет', 'url' => ['/cabinet/index'], 'options' => ['class' => 'menu-item',]],
52 Yii::$app->user->isGuest ? '': ['label' => 'Партнёрам', 'url' => ['/partner/index'], 'options' => ['class' => 'menu-item',]],
53 if (Yii::$app->user->isGuest):
54    ['label' => 'Регистрация', 'url' => ['/user/reg'], 'options' => ['class' => 'menu-item']];
55    ['label' => 'Войти', 'url' => ['/user/login'], 'options' => ['class' => 'menu-item']];
56 else:
57    ['label' => 'Выйти ('.Yii::$app->user->identity['username'].')',
58    'url' => ['/user/logout'],
59    'template' => '<a href="{url}", data-method="post">{label}</a>',
60    'options' => ['class' => 'menu-item',],
61    'linkOptions' => ['data-method' => 'post']
62    ];
63 endif;
64 ]);
65 echo Menu::widget([
66 'items' => $menuItems,
67 'options' => ['class' => 'reset', 'role' => 'navigation'],
68
69 ]);
70 ?>