How to install and configure Redis extension in php

With the development of Internet technology, more and more Web applications need to process large amounts of data, so the demand for cache is also increasing. Redis is an efficient, memory-based key-value storage system that can help us store and access data quickly, thereby greatly improving the performance of web applications.

As one of the main tools for web application development, PHP naturally supports the use of Redis. However, to use Redis with PHP, you need to use the Redis extension. In this article, we will explain how to install and configure the Redis extension.

Install Redis extension

1. Download Redis extension

The Redis extension can be downloaded on the PECL website. You can download the latest version of the Redis extension through the following command:

pecl install redis

2. Installing Redis

To run the Redis extension, Redis itself needs to be installed. You can visit the official website of Redis and download the latest version of Redis from there.

3. Install phpredis

Download and decompress the phpredis source code, enter the decompressed directory and compile:

cd /path/to/phpredis
phpize
./configure
make
sudo make install

4. Configure PHP extension

Add the following lines in the PHP.ini file:

extension=redis.so

Configuring the Redis extension

To configure the Redis extension, you need to edit the configuration file of the Redis client and restart the service:

1. Edit the Redis configuration file

Open the Redis client configuration file (usually located at /etc/redis/redis.conf) and find the bind option. Modify it and provide it with an IP address that your server is bound to, as follows:

bind 127.0.0.1

2. Restart the Redis service

In Ubuntu, you can use the following Command to restart the Redis service:

sudo service redis-server restart

3. Test the Redis extension

Assuming that you have installed and configured the Redis extension correctly, you can use the following PHP code to test Redis Is the extension working properly:

$redis = new Redis();
$redis->connect('127.0.0.1', 6379);
$redis->set('test', 'hello, world!');
echo $redis->get('test');

If everything is working properly, you should see "hello, world!" being printed to the console.

Summary

Redis extension is a tool that PHP developers must master. It can help us process large amounts of data in web applications and improve application performance. There are some details to pay attention to when installing and configuring the Redis extension, but as long as you follow the steps described in this article, you should be able to complete the task easily.

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