ausgabe von fehlern im browser entfernt, variablen mit null anstelle von "" initialisiert

index.php

@@ -1,17 +1,14 @@
 <?php
 
-error_reporting(E_ALL);
-ini_set('display_errors', true);
-
 require("static/web.php");
 require("lib/request.php");
 
 
-$outputLogin = "";
-$outputEmail = "";
-$class="";
-$title = "";
-$message = "";
+$outputLogin = null;
+$outputEmail = null;
+$class=null;
+$title = null;
+$message = null;
 $saved = false;
 
 
@@ -24,7 +21,7 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST') {
         $saved = $request->checkRequest($message);
         if ($saved) {
             $class = "success";
-            $title = "Gespeichet";
+            $title = "Success";
         } else {
             $class = "error";
             $title = "Sorry";
@@ -34,7 +31,7 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST') {
 
     } else {
         $class = "error";
-        $title = "Sorry";
+        $title = "Error";
         $message = "Something goes wrong";
     }
 }