Using Memcached in ThinkPHP6

With the rapid development of the Internet, the number of website visits is increasing. How to improve the website access speed has become a problem that every website developer needs to pay attention to. In this regard, caching technology is a very important means. As a high-performance distributed memory object caching system, Memcached is widely used, especially in high-concurrency web applications. It is an indispensable part. This article will introduce how to use Memcached in ThinkPHP6 to improve website access speed.

1. Introduction to Memcached

Memcached is a free and open source high-performance, distributed memory object caching system. Memcached can cache data in memory to speed up application access. Memcached was originally developed by Brad Fitzpatrick in 2003 to speed up the LiveJournal.com website. Since then, Memcached has become a widely used caching technology and is widely used by large websites such as Facebook, Twitter, and YouTube.

2. Advantages of Memcached

1. Fast and efficient: Memcached caches data in memory, and the reading and writing speed is very fast.
2. Distribution: cached data can be distributed to multiple Memcached servers to achieve efficient data sharing.
3. Scalable: Memcached servers can be added, deleted or replaced at any time without affecting the application.
4. Cache any data type: Any data type such as strings, numbers, arrays, objects, etc. can be cached.

3. Using Memcached in ThinkPHP6

In ThinkPHP6, using Memcached to cache data is very simple. First, you need to install the Memcached extension. Run the following command to install:

sudo apt-get install memcached
sudo apt-get install php-memcached

After the installation is complete, add the following content to the stores configuration item in config/cache.php:

'memcached'  => [
      'servers' => [
          [
              'host' => '127.0.0.1',
              'port' => 11211,
              'weight' => 100
          ],
      ],
      'connect_timeout' => 1000,
      'expire' => 0,
      'persistent_id' => '',
      'prefix' => '',
  ],

In the above configuration, servers represents the Memcached server Address and port; connect_timeout represents the connection timeout; expire is the cache time, 0 means never expires; persistent_id is the persistent ID, used to specify a unique ID for the cache server; prefix is ​​the prefix of the cache key to prevent conflicts with other applications Program conflict.

Next, you can use Memcached to cache data in the code. You can cache it through the following code:

use thinkacadeCache;

$key = 'test_key';
$value = 'test_value';
$expire = 3600; //缓存一小时

if(!Cache::store('memcached')->has($key)){
    Cache::store('memcached')->set($key,$value,$expire);
}

$data = Cache::store('memcached')->get($key);

In the above code, we used the store method of the Cache facade to specify the cache driver used as Memcached, and cached a key of test_key, a value of test_value, and a survival time of 1 hour of data. The get method is used when obtaining cache data, and the cache driver used is also specified as Memcached.

4. Summary

This article introduces the advantages of Memcached caching technology and the method of using Memcached to cache data in ThinkPHP6. With the help of Memcached caching technology, the access speed of the website can be effectively improved and the user experience can be improved. At the same time, developers also need to pay attention to caching data properly and setting appropriate cache time to give full play to the advantages of Memcached caching technology in applications.

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