Initial commit untuk UAS SIG

backend/check_auth.php

@@ -0,0 +1,10 @@
+<?php
+session_start();
+header('Content-Type: application/json');
+
+if (isset($_SESSION['user_id'])) {
+    echo json_encode(['status' => 'success', 'username' => $_SESSION['username']]);
+} else {
+    http_response_code(401);
+    echo json_encode(['status' => 'error', 'message' => 'Unauthorized']);
+}