add file

01/koneksi.php

@@ -0,0 +1,15 @@
+<?php
+$host = getenv('DB_HOST') ?: 'localhost';
+$user = getenv('DB_USER') ?: 'root';
+$pass = getenv('DB_PASSWORD');
+$pass = ($pass === false) ? '' : $pass;
+$db   = getenv('DB_NAME') ?: 'spbu_db';
+
+$conn = new mysqli($host, $user, $pass, $db);
+
+if ($conn->connect_error) {
+    die("Koneksi database gagal: " . $conn->connect_error);
+}
+
+$conn->set_charset("utf8mb4");
+?>