diff --git a/apps/basic/controllers/SiteController.php b/apps/basic/controllers/SiteController.php
index e243223..f369e3b 100644
--- a/apps/basic/controllers/SiteController.php
+++ b/apps/basic/controllers/SiteController.php
@@ -13,43 +13,43 @@ class SiteController extends Controller
 {
 	public function behaviors()
 	{
-		return array(
-			'access' => array(
+		return [
+			'access' => [
 				'class' => AccessControl::className(),
-				'only' => array('login', 'logout'),
-				'rules' => array(
-					array(
-						'actions' => array('login'),
+				'only' => ['login', 'logout'],
+				'rules' => [
+					[
+						'actions' => ['login'],
 						'allow' => true,
-						'roles' => array('?'),
-					),
-					array(
-						'actions' => array('logout'),
+						'roles' => ['?'],
+					],
+					[
+						'actions' => ['logout'],
 						'allow' => true,
-						'roles' => array('@'),
-					),
-				),
-			),
-			'verbs' => array(
+						'roles' => ['@'],
+					],
+				],
+			],
+			'verbs' => [
 				'class' => VerbFilter::className(),
-				'actions' => array(
-					'logout' => array('post'),
-				),
-			),
-		);
+				'actions' => [
+					'logout' => ['post'],
+				],
+			],
+		];
 	}
 
 	public function actions()
 	{
-		return array(
-			'error' => array(
+		return [
+			'error' => [
 				'class' => 'yii\web\ErrorAction',
-			),
-			'captcha' => array(
+			],
+			'captcha' => [
 				'class' => 'yii\captcha\CaptchaAction',
 				'fixedVerifyCode' => YII_ENV_TEST ? 'testme' : null,
-			),
-		);
+			],
+		];
 	}
 
 	public function actionIndex()
@@ -63,9 +63,9 @@ class SiteController extends Controller
 		if ($model->load($_POST) && $model->login()) {
 			return $this->goBack();
 		} else {
-			return $this->render('login', array(
+			return $this->render('login', [
 				'model' => $model,
-			));
+			]);
 		}
 	}
 
@@ -82,9 +82,9 @@ class SiteController extends Controller
 			Yii::$app->session->setFlash('contactFormSubmitted');
 			return $this->refresh();
 		} else {
-			return $this->render('contact', array(
+			return $this->render('contact', [
 				'model' => $model,
-			));
+			]);
 		}
 	}
 
diff --git a/apps/basic/models/ContactForm.php b/apps/basic/models/ContactForm.php
index 7b713a1..f42cd53 100644
--- a/apps/basic/models/ContactForm.php
+++ b/apps/basic/models/ContactForm.php
@@ -20,14 +20,14 @@ class ContactForm extends Model
 	 */
 	public function rules()
 	{
-		return array(
+		return [
 			// name, email, subject and body are required
-			array('name, email, subject, body', 'required'),
+			['name, email, subject, body', 'required'],
 			// email has to be a valid email address
-			array('email', 'email'),
+			['email', 'email'],
 			// verifyCode needs to be entered correctly
-			array('verifyCode', 'captcha'),
-		);
+			['verifyCode', 'captcha'],
+		];
 	}
 
 	/**
@@ -35,9 +35,9 @@ class ContactForm extends Model
 	 */
 	public function attributeLabels()
 	{
-		return array(
+		return [
 			'verifyCode' => 'Verification Code',
-		);
+		];
 	}
 
 	/**
diff --git a/apps/basic/models/LoginForm.php b/apps/basic/models/LoginForm.php
index 5ba1dc6..339cf31 100644
--- a/apps/basic/models/LoginForm.php
+++ b/apps/basic/models/LoginForm.php
@@ -19,14 +19,14 @@ class LoginForm extends Model
 	 */
 	public function rules()
 	{
-		return array(
+		return [
 			// username and password are both required
-			array('username, password', 'required'),
+			['username, password', 'required'],
 			// password is validated by validatePassword()
-			array('password', 'validatePassword'),
+			['password', 'validatePassword'],
 			// rememberMe must be a boolean value
-			array('rememberMe', 'boolean'),
-		);
+			['rememberMe', 'boolean'],
+		];
 	}
 
 	/**
diff --git a/apps/basic/models/User.php b/apps/basic/models/User.php
index e1088a0..085cda2 100644
--- a/apps/basic/models/User.php
+++ b/apps/basic/models/User.php
@@ -9,20 +9,20 @@ class User extends \yii\base\Object implements \yii\web\IdentityInterface
 	public $password;
 	public $authKey;
 
-	private static $users = array(
-		'100' => array(
+	private static $users = [
+		'100' => [
 			'id' => '100',
 			'username' => 'admin',
 			'password' => 'admin',
 			'authKey' => 'test100key',
-		),
-		'101' => array(
+		],
+		'101' => [
 			'id' => '101',
 			'username' => 'demo',
 			'password' => 'demo',
 			'authKey' => 'test101key',
-		),
-	);
+		],
+	];
 
 	public static function findIdentity($id)
 	{