The gospel of improving website performance: the wonderful uses and best practices of PHP Memcached extension

Start by understanding Memcached:

php editor Apple takes you to explore the magical usage of the PHP Memcached extension and learn how to use this extension to improve website performance. Through best practices, you will learn how to fully utilize Memcached's potential in caching data and make your website faster!

The wonderful uses of Memcached:

1. Improve website access speed: Reduce the number of database queries by caching data such as pages, query results, etc., thereby shortening page loading time and improving user experience.
2. Reduce server load: Store part of the data in memory instead of database to reduce the burden on the database and improve server performance.
3. Enhance concurrency capabilities: Memcached can handle a large number of requests at the same time, effectively improving the concurrency capabilities of the website, allowing the website to handle more concurrent accesses.
4. Save bandwidth consumption: Since data is stored in memory, it reduces the need for network transmission, thereby saving bandwidth consumption and reducing costs.

Best practices for Memcached:

1. Choose appropriate data: Selecting data that is frequently accessed and difficult to change for caching can maximize the effectiveness of the cache.
2. Set a reasonable cache expiration time: Set a reasonable expiration time for each cached data to ensure that the cached data will automatically expire after expiration and ensure data accuracy.
3. Using serialization and deserialization: The data stored in Memcached is in binary format, and serialization and deserialization operations are usually required to ensure data consistency.
4. Avoid storing large objects: Try to avoid storing large objects, because this will occupy a lot of memory and affect cache performance.
5. Enable compression function: Enabling Memcached's compression function can reduce the volume of data transmitted on the network and increase the data transmission speed.

Demo code:

// 加载Memcached扩展
extension_loaded("memcached") or die("Memcached扩展未加载");

// 创建Memcached对象
$memcached = new Memcached();

// 添加服务器
$memcached->addServer("localhost", 11211);

// 存储数据
$memcached->set("key", "value");

// 获取数据
$value = $memcached->get("key");

Summarize:

php Memcached extension is a powerful tool that can significantly improve website performance. By rationally using Memcached, you can effectively cache data, reduce the number of database queries, reduce server load, enhance concurrency capabilities, and save bandwidth consumption. By following best practices, you can give full play to the effectiveness of Memcached, making your website run more smoothly and provide a better user experience.

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