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How to use Redis cache with PHPixie framework?

PHPz

Jun 03, 2023 am 08:32 AM

rediscachephpixie

Redis is a popular in-memory caching solution that can help speed up access and reduce the number of database queries. PHPixie is a lightweight PHP framework that emphasizes simplicity, ease of use and efficiency. This article will introduce how to use Redis cache in PHPixie framework.

Install Redis extension
First, we need to install the Redis extension for PHP. Installation instructions can be found in the official PHP documentation. Redis extensions can usually be installed through PECL.
Configuring Redis connection
In the PHPixie framework, all configurations are stored in the /config directory. We need to create a new configuration file to store Redis connection information. Assuming we are using the default PHPixie development environment, we can add the following code in the /config/development/database.php directory:

return array(
    'default' => array(
        'connection' => array(
            'type' => 'redis',
            'server' => '127.0.0.1',
            'port' => 6379,
        ),
    ),
);

Here we set up the connection Information, the default local Redis server is used, the port number is 6379. You need to modify it according to your actual situation.

Using Redis Cache
With the Redis connection configuration, we can use Redis in our PHPixie application. Suppose we want to cache a user object. We can do this in the model layer:

use PHPixieORMCacheTypeRedis as RedisCache;

class UserModel extends PHPixieORMModel {

    protected $cache;

    public function __construct($pixie) {
        parent::__construct($pixie);

        $config = $this->pixie->config->get('database.default.connection');

        $redis = new Redis();
        $redis->connect($config['server'], $config['port']);
        $this->cache = new RedisCache($redis);
    }

    public function getUserById($id) {
        $cacheKey = 'user_' . $id;

        $user = $this->cache->get($cacheKey);
        if (!$user) {
            $user = $this->find($id);
            $this->cache->set($cacheKey, $user, 3600);
        }

        return $user;
    }
}

In this example, we first create a Redis connection in the constructor and then use the RedisCache object for caching. In the getUserById() method, we first check whether there is this user object in the cache. If not, we get it from the database and cache it. The cache time is 3600 seconds.

Clear cache
Sometimes, we may need to clear the cache after the application performs certain operations. We can implement the following code in one of the controllers of the application:

$config = $this->pixie->config->get('database.default.connection');

$redis = new Redis();
$redis->connect($config['server'], $config['port']);
$redis->flushAll();

This will clear all cached data in Redis.

Summary:
Using Redis cache in the PHPixie framework is very simple. We only need to install the Redis extension and configure the connection information to use Redis in the application. With proper caching, you can improve application performance and reduce the load on your database.

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