connect_error) { header('Content-Type: application/json; charset=utf-8'); http_response_code(500); echo json_encode([ 'success' => false, 'message' => 'Koneksi database gagal: ' . $koneksi->connect_error ]); exit; } $koneksi->set_charset('utf8mb4'); function json_response($data, $status_code = 200) { header('Content-Type: application/json; charset=utf-8'); http_response_code($status_code); echo json_encode($data); exit; } ?>