Improve security

Change-Id: Ia98bb629c8c81f609d3a5e4d023616a95f9c4248
diff --git a/php/db.php b/php/db.php
new file mode 100644
index 0000000..2043b87
--- /dev/null
+++ b/php/db.php
@@ -0,0 +1,9 @@
+<?php
+require_once(dirname(__FILE__)."/../credentials.php");
+
+// Create connection
+$credentials = new Credentials();
+$conn = new mysqli($credentials->servername, $credentials->username, $credentials->password, $credentials->dbname);
+
+if ($conn->connect_error) die("Connection failed: " . $conn->connect_error);
+$conn->set_charset("utf8");