diff --git a/src/Illuminate/Auth/Reminders/PasswordBroker.php b/src/Illuminate/Auth/Reminders/PasswordBroker.php
index 6b914b46..86d14f6c 100755
--- a/src/Illuminate/Auth/Reminders/PasswordBroker.php
+++ b/src/Illuminate/Auth/Reminders/PasswordBroker.php
@@ -46,35 +46,35 @@ class PasswordBroker {
 	 *
 	 * @var \Illuminate\Auth\Reminders\ReminderRepositoryInterface  $reminders
 	 */
-	protected $reminders;
+	protected ReminderRepositoryInterface $reminders;
 
 	/**
 	 * The user provider implementation.
 	 *
 	 * @var \Illuminate\Auth\UserProviderInterface
 	 */
-	protected $users;
+	protected UserProviderInterface $users;
 
 	/**
 	 * The mailer instance.
 	 *
 	 * @var \Illuminate\Mail\Mailer
 	 */
-	protected $mailer;
+	protected Mailer $mailer;
 
 	/**
 	 * The view of the password reminder e-mail.
 	 *
 	 * @var string
 	 */
-	protected $reminderView;
+	protected string $reminderView;
 
 	/**
 	 * The custom password validator callback.
 	 *
 	 * @var \Closure
 	 */
-	protected $passwordValidator;
+	protected Closure $passwordValidator;
 
 	/**
 	 * Create a new password broker instance.
@@ -82,13 +82,13 @@ class PasswordBroker {
 	 * @param  \Illuminate\Auth\Reminders\ReminderRepositoryInterface  $reminders
 	 * @param  \Illuminate\Auth\UserProviderInterface  $users
 	 * @param  \Illuminate\Mail\Mailer  $mailer
-	 * @param  string  $reminderView
+	 * @param string $reminderView
 	 * @return void
 	 */
 	public function __construct(ReminderRepositoryInterface $reminders,
-                                UserProviderInterface $users,
-                                Mailer $mailer,
-                                $reminderView)
+                                UserProviderInterface       $users,
+                                Mailer                      $mailer,
+                                string                      $reminderView)
 	{
 		$this->users = $users;
 		$this->mailer = $mailer;
@@ -103,14 +103,14 @@ public function __construct(ReminderRepositoryInterface $reminders,
 	 * @param  \Closure  $callback
 	 * @return string
 	 */
-	public function remind(array $credentials, Closure $callback = null)
+	public function remind(array $credentials, Closure $callback = null): string
 	{
 		// First we will check to see if we found a user at the given credentials and
 		// if we did not we will redirect back to this current URI with a piece of
 		// "flash" data in the session to indicate to the developers the errors.
 		$user = $this->getUser($credentials);
 
-		if (is_null($user))
+		if ($user === null)
 		{
 			return self::INVALID_USER;
 		}
@@ -129,22 +129,24 @@ public function remind(array $credentials, Closure $callback = null)
 	 * Send the password reminder e-mail.
 	 *
 	 * @param  \Illuminate\Auth\Reminders\RemindableInterface  $user
-	 * @param  string    $token
-	 * @param  \Closure  $callback
-	 * @return int
+	 * @param string $token
+	 * @param  Closure  $callback
+	 * @return void
 	 */
-	public function sendReminder(RemindableInterface $user, $token, Closure $callback = null)
+	public function sendReminder(RemindableInterface $user, string $token, Closure $callback = null): void
 	{
 		// We will use the reminder view that was given to the broker to display the
 		// password reminder e-mail. We'll pass a "token" variable into the views
 		// so that it may be displayed for an user to click for password reset.
 		$view = $this->reminderView;
 
-		return $this->mailer->send($view, compact('token', 'user'), function($m) use ($user, $token, $callback)
+		$this->mailer->send($view, compact('token', 'user'), function($m) use ($user, $token, $callback)
 		{
 			$m->to($user->getReminderEmail());
 
-			if ( ! is_null($callback)) call_user_func($callback, $m, $user, $token);
+			if ($callback !== null) {
+                call_user_func($callback, $m, $user, $token);
+            }
 		});
 	}
 
@@ -153,10 +155,10 @@ public function sendReminder(RemindableInterface $user, $token, Closure $callbac
 	 *
 	 * @param  array     $credentials
 	 * @param  \Closure  $callback
-	 * @return mixed
-	 */
-	public function reset(array $credentials, Closure $callback)
-	{
+	 * @return RemindableInterface|string|int
+     */
+	public function reset(array $credentials, Closure $callback): RemindableInterface|string|int
+    {
 		// If the responses from the validate method is not a user instance, we will
 		// assume that it is a redirect and simply return it from this method and
 		// the user is properly redirected having an error message on the post.
@@ -179,25 +181,26 @@ public function reset(array $credentials, Closure $callback)
 		return self::PASSWORD_RESET;
 	}
 
-	/**
-	 * Validate a password reset for the given credentials.
-	 *
-	 * @param  array  $credentials
-	 * @return \Illuminate\Auth\Reminders\RemindableInterface
-	 */
-	protected function validateReset(array $credentials)
-	{
-		if (is_null($user = $this->getUser($credentials)))
+    /**
+     * Validate a password reset for the given credentials.
+     *
+     * @param array $credentials
+     * @return RemindableInterface|int|string
+     */
+	protected function validateReset(array $credentials): RemindableInterface|int|string
+    {
+        $user = $this->getUser($credentials);
+        if ($user === null)
 		{
 			return self::INVALID_USER;
 		}
 
-		if ( ! $this->validNewPasswords($credentials))
+		if (!$this->validNewPasswords($credentials))
 		{
 			return self::INVALID_PASSWORD;
 		}
 
-		if ( ! $this->reminders->exists($user, $credentials['token']))
+		if (!$this->reminders->exists($user, $credentials['token']))
 		{
 			return self::INVALID_TOKEN;
 		}
@@ -211,8 +214,8 @@ protected function validateReset(array $credentials)
 	 * @param  \Closure  $callback
 	 * @return void
 	 */
-	public function validator(Closure $callback)
-	{
+	public function validator(Closure $callback): void
+    {
 		$this->passwordValidator = $callback;
 	}
 
@@ -222,9 +225,9 @@ public function validator(Closure $callback)
 	 * @param  array  $credentials
 	 * @return bool
 	 */
-	protected function validNewPasswords(array $credentials)
-	{
-		list($password, $confirm) = array($credentials['password'], $credentials['password_confirmation']);
+	protected function validNewPasswords(array $credentials): bool
+    {
+		list($password, $confirm) = [$credentials['password'], $credentials['password_confirmation']];
 
 		if (isset($this->passwordValidator))
 		{
@@ -240,24 +243,23 @@ protected function validNewPasswords(array $credentials)
 	 * @param  array  $credentials
 	 * @return bool
 	 */
-	protected function validatePasswordWithDefaults(array $credentials)
-	{
+	protected function validatePasswordWithDefaults(array $credentials): bool
+    {
 		list($password, $confirm) = [$credentials['password'], $credentials['password_confirmation']];
 
 		return $password === $confirm && mb_strlen((string) $password) >= 6;
 	}
 
-	/**
-	 * Get the user for the given credentials.
-	 *
-	 * @param  array  $credentials
-	 * @return \Illuminate\Auth\Reminders\RemindableInterface
-	 *
-	 * @throws \UnexpectedValueException
-	 */
-	public function getUser(array $credentials)
-	{
-		$credentials = array_except($credentials, array('token'));
+    /**
+     * Get the user for the given credentials.
+     *
+     * @param array $credentials
+     * @return RemindableInterface|null
+     *
+     */
+	public function getUser(array $credentials): ?RemindableInterface
+    {
+		$credentials = array_except($credentials, ['token']);
 
 		$user = $this->users->retrieveByCredentials($credentials);
 
@@ -274,8 +276,8 @@ public function getUser(array $credentials)
 	 *
 	 * @return \Illuminate\Auth\Reminders\ReminderRepositoryInterface
 	 */
-	protected function getRepository()
-	{
+	protected function getRepository(): ReminderRepositoryInterface
+    {
 		return $this->reminders;
 	}