small changes

src/Praktikum/Prak2/shop.php

-<?php declare(strict_types=1);
+<?php /** @noinspection PhpMultipleClassDeclarationsInspection */
+declare(strict_types=1);
 // UTF-8 marker äöüÄÖÜ߀
 /**
  * Class shop for the exercises of the EWA lecture
@@ -102,7 +103,7 @@ class Shop extends Page
                     <h2>Speisekarte</h2>
         HTML;
 
-        foreach ($data as &$pizza) {
+        foreach ($data as $pizza) {
             echo <<< HTML
                 <label>
                         <img alt="Image of Pizza {$pizza["name"]}" src="./img/{$pizza["picture"]}">