Return types

exam/api/Register/Register.php

@@ -10,7 +10,7 @@ use Khofmann\Models\User\User;
 
 class Register extends Api
 {
-  public function post()
+  public function post(): void
   {
     $username = Input::post("username");
     if (empty($username)) throw new Exception("Missing username", 400);
@@ -20,7 +20,7 @@ class Register extends Api
     if (empty($password)) throw new Exception("Missing password", 400);
 
     try {
-      return Response::json(User::create($username, $email, $password));
+      Response::json(User::create($username, $email, $password));
     } catch (Exception $err) {
       switch ($err->getMessage()) {
         case "Duplicate":