Button for adding to wishlist works, Database userFavorites included

compcards.php

@@ -5,8 +5,6 @@ ini_set('display_errors', 1);
 ini_set('display_startup_errors', 1);
 error_reporting(E_ALL);
 
-session_start();
-
 // 1) DB-Verbindung (einmal)
 $servername = "localhost";
 $port = 3306;

productpage.php

@@ -178,9 +178,54 @@ $productId = isset($_GET['id']) ? (int)$_GET['id'] : 0;
             </div>
         </div>
     </div>
-    <div class ="shop-offers"
+
+    <?php
+        $stmt = mysqli_prepare($conn,
+                "SELECT price, shippingCost, inStock, shops.name, shops.website 
+                        FROM offers 
+                        INNER JOIN shops ON 
+                        offers.shopID = shops.shopID WHERE offers.productID = ?");
+
+        $stmt->bind_param("i", $productId);
+        $stmt->execute();
+        $result = $stmt->get_result();
+
+        $shopInfo = [];
+
+        while ($row = $result->fetch_assoc()) {
+            $shopInfo[] = $row;
+        }
+
+
+
+    ?>
+
+    <div class="shop-offers">
+
+        <?php if (!empty($shopInfo)): ?>
+
+            <?php foreach ($shopInfo as $shop): ?>
+
+                <div class="shop-line">
+                    <a href="<?= htmlspecialchars($shop['website']) ?>" target="_blank">
+                        <?= htmlspecialchars($shop['name']) ?>
+                    </a><br>
+
+                    Preis: <?= htmlspecialchars($shop['price']) ?> € <br>
+                    Versand: <?= htmlspecialchars($shop['shippingCost']) ?> € <br>
+                    Lagernd: <?= $shop['inStock'] ? "Ja" : "Nein" ?>
+                </div>
+
+            <?php endforeach; ?>
+
+        <?php else: ?>
+            <p>Keine Shops bieten dieses Produkt an.</p>
+        <?php endif; ?>
+
+    </div>
 
     <?php $stmt->close(); ?>
+
 <?php endif; ?>