$_POST['site_title'], 'site_logo' => $_POST['site_logo'], 'tg_link' => $_POST['tg_link'], 'footer_copy' => $_POST['footer_copy'], 'watermark_text' => $_POST['watermark_text'] ]; foreach ($updates as $key => $val) { $stmt = $pdo->prepare("UPDATE settings SET setting_value = ? WHERE setting_key = ?"); $stmt->execute([$val, $key]); } $message = '设置更新成功!'; } // Get current settings $settings = []; $stmt = $pdo->query("SELECT setting_key, setting_value FROM settings"); while ($row = $stmt->fetch(PDO::FETCH_ASSOC)) { $settings[$row['setting_key']] = $row['setting_value']; } $site_logo = $settings['site_logo'] ?? 'assets/pasted-20260207-134833-7329dc42.jpg'; ?>