New Redis extension introduced in PHP8.1

New Redis extension introduced in PHP8.1

With the rapid development of the Internet, a large amount of data needs to be stored and processed. In order to improve the efficiency and performance of data processing, caching has become an indispensable part. In PHP development, Redis, as a high-performance key-value storage system, is widely used in caching and data storage scenarios. In order to further improve the experience of using Redis in PHP, PHP8.1 introduces a new Redis extension. This article will introduce the new features of this extension and give code examples.

1. Introduction to Redis extension

The Redis extension is an extension provided by PHP for interacting with Redis. It provides a series of APIs so that PHP developers can easily operate Redis. server. Before PHP8.1, two official Redis extensions were provided: phpredis and Predis. In PHP8.1, an official extension called Redis has been added, providing new APIs and functions to further enhance developers' experience with Redis.

2. New functions of Redis extension

1. Introducing Redis support for numerical operations

In the previous Redis extension, for numerical type operations , developers need to use strings for storage and processing. In the new Redis extension, support for numerical operations has been added, and developers can directly use numerical types to perform operations. The following is a sample code:

<?php
$redis = new Redis();
$redis->connect('127.0.0.1', 6379);

$redis->set('num', 10);
$num = $redis->get('num');
echo $num;  // 输出 10

$redis->incr('num');
$num = $redis->get('num');
echo $num;  // 输出 11

$redis->decr('num');
$num = $redis->get('num');
echo $num;  // 输出 10
?>

2. Introducing support for set operations

In the previous Redis extension, for set type operations, developers need to Use a series of commands to achieve this. In the new Redis extension, collection objects can be directly used for operations, simplifying the development process. The following is a sample code:

<?php
$redis = new Redis();
$redis->connect('127.0.0.1', 6379);

$redis->sAdd('set', 'value1');
$redis->sAdd('set', 'value2');
$redis->sAdd('set', 'value3');

$members = $redis->sMembers('set');
print_r($members);  // 输出 Array ( [0] => value1 [1] => value2 [2] => value3 )
?>

3. Introducing support for ordered set operations

In the previous Redis extension, for the Sorted Set type To operate, developers need to use a series of commands to achieve it. In the new Redis extension, you can directly use ordered collection objects to perform operations, simplifying the development process. The following is a sample code:

<?php
$redis = new Redis();
$redis->connect('127.0.0.1', 6379);

$redis->zAdd('sortedSet', 1, 'value1');
$redis->zAdd('sortedSet', 2, 'value2');
$redis->zAdd('sortedSet', 3, 'value3');

$members = $redis->zRange('sortedSet', 0, -1);
print_r($members);  // 输出 Array ( [0] => value1 [1] => value2 [2] => value3 )
?>

The above is only part of the new features in the Redis extension, and there are more features available. By introducing these new features, PHP8.1 further improves the application performance and development efficiency of Redis in PHP development, making it easier for developers to use Redis for data processing and caching.

Summary:

This article introduces the new Redis extension introduced in PHP8.1, discusses the new features of this extension, and gives relevant code examples. By introducing new Redis extensions, PHP8.1 further improves the experience of using Redis in PHP development, allowing developers to more conveniently use Redis for data processing and caching. I believe that with the popularity and promotion of PHP8.1, the new Redis extension will play an increasingly important role in PHP development.

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