SonarQube code smells resolve #13

Source/API/script/APIController.php

@@ -2,18 +2,17 @@
 
 class APIController
 {
-    // private ScriptDatabase $script;
     public function __construct()
     {
         try {
             if (empty($_REQUEST['action'])) {
-                $action = NULL;
+                $action = null;
             } else {
                 $action = $_REQUEST['action'];
             }
             $listGateway = array("\\Gateway\\GatewayForm", "\\Gateway\\GatewayKeyword", "\\Gateway\\GatewayQuestion");
             foreach ($listGateway as $gateway) {
-                if(method_exists($gateway, $action)) {
+                if (method_exists($gateway, $action)) {
                     (new $gateway)->$action();
                 }
             }