diff --git a/connect_db.php b/connect_db.php
index b24967e..7643de4 100644
--- a/connect_db.php
+++ b/connect_db.php
@@ -1,17 +1,15 @@
 <?php
+    $db_link = mysqli_connect('localhost', 'web_b-3', 'een7Ao6s', 'bibliothek_candle', '3306');
 
-   $servername = "141.19.142.11";
-   $username = "web_b-3";
-   $password = "een7Ao6s";
-   $database = "bibliothek_candle";
-   
-   try {
-       $conn = new PDO("mysql:host=$servername;dbname=$database", $username, $password);
-       $conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
-       echo "Connected successfully";
-   } catch(PDOException $e) {
-       echo "Connection failed: " . $e->getMessage();
-   }
-   
-   
+    if(!$db_link){
+        die("<p>Verbindung nicht hergestellt</p>");
+    }else{
+        echo "Verbindung hergestellt!";
+    }
+
+    function runSQL($sql){
+        global $db_link;
+        $db_res = mysqli_query($db_link, $sql) or die("SQL_Abfrage: " . $sql . "Fehler: " . mysqli_error($db_link));
+        return $db_res;
+    }
 ?>
\ No newline at end of file