initial database output, probably doesn't work

var/www/messageSender.php

@@ -7,7 +7,31 @@ body {
 }
 </style>
 
+<?php
+$servername = "localhost";
+$username = "web";
+$password = "Password456";
 
+// Create connection
+$conn = new mysqli($servername, $username, $password);
+
+// Check connection
+if ($conn->connect_error) {
+    die("Connection failed: " . $conn->connect_error);
+}
+
+$username = $_POST["name"];
+$message = $_POST["message"];
+
+$query0 = "Select max(messageID) from messages";
+mysqli_query($db, $query0) or die('Error querying database.');
+$maxID = mysqli_query($db, $query0);
+$maxID = $maxID + 1;
+$query1 = "Insert into messages (messageID, sender, recipient, message, date, haveread) values({$maxID}, , {$username}, {$message}, NOW(), 'N')";
+mysqli_query($db, $query1) or die('Error querying database.');
+
+mysqli_close($db);
+?>
 
 </body>
 </html>