How to implement redis in codeigniter?

@lew 

To implement Redis in CodeIgniter, you need to follow these steps:

Step 1: Install Redis First, you need to make sure Redis is installed and running on your server. You can find the installation instructions for different platforms on the official Redis website.

Step 2: Install CodeIgniter Redis Package CodeIgniter does not have native support for Redis. However, you can use a third-party package called "CodeIgniter Redis" to integrate Redis into your CodeIgniter project. You can install it using composer by running the following command:

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composer require joshcam/mysqli-db

Step 3: Configure Redis Connection Next, you need to configure the Redis connection settings in your CodeIgniter configuration file. Open the config/database.php file and add the following configuration:

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$db['redis'] = array(
    'hostname' => 'localhost',
    'port' => '6379',
    'password' => '',
    'database' => '0',
    'timeout' => 0,
    'charset' => 'utf8',
    'prefix' => ''
);

Step 4: Load Redis Library In your CodeIgniter controller or model where you want to use Redis, you need to load the Redis library. You can load it using the following line of code:

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$this->load->library('redis');

Step 5: Connect to Redis After loading the Redis library, you need to establish a connection to the Redis server. You can do this by calling the connect() method:

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$this->redis->connect();

Step 6: Use Redis Commands Once the connection is established, you can use Redis commands to perform various operations, such as setting values, getting values, incrementing counters, etc. Here are a few examples:

• Setting a value:

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$this->redis->set('key', 'value');

• Getting a value:

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$value = $this->redis->get('key');

• Incrementing a counter:

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$this->redis->incr('counter');

• Deleting a key:

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$this->redis->del('key');

Note that these are just a few examples, and Redis supports many more commands for different use cases.

Step 7: Disconnect from Redis After you have finished using Redis, it's good practice to disconnect from the Redis server. You can do this by calling the disconnect() method:

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$this->redis->disconnect();

That's it. You have now successfully implemented Redis in your CodeIgniter project. You can explore the Redis documentation to learn more about its features and commands.