diff --git a/Backend/Controllers/Admin/Admin.php b/Backend/Controllers/Admin/Admin.php
index 097b9a2..51232d5 100644
--- a/Backend/Controllers/Admin/Admin.php
+++ b/Backend/Controllers/Admin/Admin.php
@@ -8,6 +8,9 @@ function isAdmin(): bool
     return isset($_SESSION['admin']);
 }
 
+/**
+ * @param string $userName
+ */
 function makeAdminLogin(string $userName)
 {
     setcookie("userName", $userName, [
diff --git a/Backend/Controllers/FileHandler/FileHandler.php b/Backend/Controllers/FileHandler/FileHandler.php
index 5cbb8eb..e31cb14 100644
--- a/Backend/Controllers/FileHandler/FileHandler.php
+++ b/Backend/Controllers/FileHandler/FileHandler.php
@@ -5,7 +5,8 @@
  * @return string
  */
 
-function ZipFileHandler(string $gameFileName, string $gameFileTmp){
+function ZipFileHandler(string $gameFileName, string $gameFileTmp): string
+{
     $fileExtGame = explode('.', $gameFileName);
     $fileActualExtGame = strtolower(end($fileExtGame));
 
@@ -25,7 +26,6 @@ function ZipFileHandler(string $gameFileName, string $gameFileTmp){
         echo json_encode(["message" => "Wrong file type gameFile"]);
         exit();
     }
-return NULL;
 }
 
 /**
@@ -33,7 +33,8 @@ return NULL;
  * @param string $thumbnailFileTmp
  * @return string
  */
-function imagesFileHandler(string $thumbnailFileName, string $thumbnailFileTmp){
+function imagesFileHandler(string $thumbnailFileName, string $thumbnailFileTmp): string
+{
     $fileExtThumb = explode('.', $thumbnailFileName);
     $fileActualExtThumb = strtolower(end($fileExtThumb));
 
@@ -53,5 +54,4 @@ function imagesFileHandler(string $thumbnailFileName, string $thumbnailFileTmp){
         echo json_encode(["message" => "Wrong file type thumbnailFile"]);
         exit();
     }
-    return NULL;
 }
\ No newline at end of file