How to use the Hyperf framework for multi-level caching

How to use the Hyperf framework for multi-level caching

Introduction: With the rapid development of the Internet, caching technology is becoming more and more important. As a high-performance and flexible PHP framework, Hyperf provides a variety of cache drivers and also supports the use of multi-level caches. This article will introduce how to configure and use multi-level cache in the Hyperf framework and provide specific code examples.

1. Preparation: Install the Hyperf framework and cache driver

Before you start using multi-level cache, you first need to install the Hyperf framework and ensure that the corresponding cache driver has been configured. The Hyperf framework provides support for a variety of cache drivers, such as Redis, Memcached, File, etc. The following are common cache driver installation methods in the Hyperf framework:

1. Redis cache driver:

   composer require hyperf/redis

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2. Memcached cache driver:

   composer require hyperf/memcached

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3. File cache driver (installed by default):

   composer require hyperf/filesystem

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2. Configure multi-level cache

Configure multi-level cache in the Hyperf framework Caching requires editing the config/autoload/cache.php file. By configuring the default and stores options in this file, you can specify the cache driver used and the level of multi-level cache.

The following is an example config/autoload/cache.php file configuration:

<?php

return [
    'default' => env('CACHE_DRIVER', 'multi'),
    'stores' => [
        'multi' => [
            'driver' => 'multi',
            'stores' => [
                'redis',
                'file',
            ],
            'separator' => '::',
        ],
        'redis' => [
            'driver' => 'redis',
            'connection' => 'default',
        ],
        'file' => [
            'driver' => 'file',
            'path' => BASE_PATH . '/runtime/cache',
        ],
    ],
];

In the above example, the default option specifies the default The cache driver is multi, the stores option defines the specific configuration of the multi-level cache, each element in the stores array represents a cache level, which can be Expansion is actually required. In the example, the multi level uses Redis and File drivers, and the cache key separator is specified through separator.

3. Use multi-level cache

After configuring multi-level cache, we can use multi-level cache in the Hyperf framework. The Hyperf framework provides the HyperfCacheCache class to implement caching operations. Below we will use a specific code example to show how to use multi-level caching.

First, we need to inject the HyperfCacheCache class into the controller:

<?php

namespace AppController;

use HyperfCacheCache;
use HyperfDiAnnotationInject;

class UserController extends AbstractController
{
    /**
     * @Inject
     * @var Cache
     */
    protected $cache;

    // ...
}

Then, use the $this->cache object in the method Perform cache read and write operations. Here is an example method how to read and write data from a multi-level cache:

public function getUserInfo($userId)
{
    $cacheKey = 'user_info::' . $userId;;
    $userInfo = $this->cache->get($cacheKey);

    if (empty($userInfo)) {
        $userInfo = User::find($userId);
        $this->cache->set($cacheKey, $userInfo, 3600); // 设置缓存有效期为1小时
    }

    return $userInfo;
}

In the example code, we first use $this->cache->get The method gets the data from the cache, if it does not exist in the cache, it gets the data from the database and writes the data into the cache using the $this->cache->set method and sets the cache The validity period is 1 hour.

Through the above sample code, we can cache user information and improve system performance and response speed.

Summary:

This article introduces how to configure and use multi-level cache in the Hyperf framework. By configuring the config/autoload/cache.php file, we can specify the multi-level cache level and cache driver. At the same time, using the HyperfCacheCache class can conveniently perform cache read and write operations. I hope this article will be helpful to you when using the Hyperf framework for multi-level caching.

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