    <?php

    function submitSitemapToGoogle($sitemap_url) {
        // This is a simplified example. In a real-world scenario, you'd use Google Search Console API.
        // Direct "ping" URLs are largely deprecated by Google.
        // You would typically submit your sitemap within Google Search Console.

        // For demonstration, a basic cURL request (not a true "ping" for indexing):
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, "https://www.google.com/ping?sitemap=" . urlencode($sitemap_url));
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        $response = curl_exec($ch);
        curl_close($ch);

        return $response;
    }

    // Example usage:
    $your_sitemap_url = "https://xn--sr3bu5lug343a.com/sitemap.xml";
    $result = submitSitemapToGoogle($your_sitemap_url);

    if ($result) {
        echo "Attempted to notify Google about sitemap: " . $your_sitemap_url;
    } else {
        echo "Failed to notify Google.";
    }

    ?>