dedecms 文章浏览数

// 示例代码：使用事务和锁机制更新浏览数
function updateViews($articleId) {
    $db = new PDO('mysql:host=localhost;dbname=dedecms', 'username', 'password');
    $db->beginTransaction();
    try {
        $stmt = $db->prepare("UPDATE `dede_archives` SET `views` = `views` + 1 WHERE `id` = :articleId FOR UPDATE");
        $stmt->bindParam(':articleId', $articleId);
        $stmt->execute();
        $db->commit();
    } catch (Exception $e) {
        $db->rollBack();
        throw $e;
    }
}

// 示例代码：使用Redis缓存浏览数
function updateViews($articleId) {
    $redis = new Redis();
    $redis->connect('127.0.0.1', 6379);
    $views = $redis->get("article:$articleId:views");
    if (!$views) {
        $db = new PDO('mysql:host=localhost;dbname=dedecms', 'username', 'password');
        $stmt = $db->prepare("SELECT `views` FROM `dede_archives` WHERE `id` = :articleId");
        $stmt->bindParam(':articleId', $articleId);
        $stmt->execute();
        $result = $stmt->fetch(PDO::FETCH_ASSOC);
        $views = $result['views'] ?? 0;
    }
    $views++;
    $redis->set("article:$articleId:views", $views);
    // 定期将Redis中的数据同步到数据库
}