// 使用第三方URL缩短API
function shortenUrl($longUrl) {
    $apiUrl = 'https://api.example.com/shorten?url=' . urlencode($longUrl);
    $response = file_get_contents($apiUrl);
    return json_decode($response)->short_url;
}

$longUrl = 'https://example.com/page.php?param1=value1&param2=value2&...';
$shortUrl = shortenUrl($longUrl);

// 压缩参数
function compressParams($params) {
    $queryString = http_build_query($params);
    return base64_encode(gzcompress($queryString, 9));
}

// 解压参数
function decompressParams($compressed) {
    $queryString = gzuncompress(base64_decode($compressed));
    parse_str($queryString, $params);
    return $params;
}

// 使用示例
$params = ['user_id' => 123, 'action' => 'view', 'page' => 5];
$compressed = compressParams($params);
$restored = decompressParams($compressed);

// 前端使用POST提交
<form method="post" action="process.php">
    <input type="hidden" name="data" value="<?= htmlspecialchars(json_encode($largeData)) ?>">
    <button type="submit">提交</button>
</form>

// 后端处理
$data = json_decode($_POST['data'], true);

// 存储参数到session
session_start();
$_SESSION['large_params'] = $largeParamsArray;

// 重定向到短URL
header('Location: process.php?session_key=large_params');