Database
Mysql Tutorial
Methods for implementing cache acceleration in PHP and MySQL combined with Redis
Methods for implementing cache acceleration in PHP and MySQL combined with Redis
May 28, 2025 pm 06:27 PM
Redis is needed to speed up the combination of PHP and MySQL, because Redis can significantly increase data access speed and reduce database query burden. Specific methods include: 1. Cache MySQL query results into Redis to reduce the number of direct queries; 2. Ensure cache consistency using publish-subscribe mode or transactions; 3. Prevent cache penetration through Bloom filters; 4. Set different expiration times or use distributed locks to avoid cache avalanches; 5. Implement hierarchical caching, data warm-up and dynamic adjustment strategies to further optimize performance.
Before we explore how to achieve cache acceleration using PHP, MySQL and Redis, let's first answer a key question: Why do we need to use Redis to accelerate the combination of PHP and MySQL? As an in-memory data structure storage system, Redis can greatly improve data access speed, especially for frequently read data. By caching MySQL query results into Redis, we can significantly reduce the query burden on the database, thereby improving overall system performance and response speed.
Now let's dive into how to use PHP and MySQL in conjunction with Redis for cache acceleration.
PHP and MySQL are common combinations in web development that provide powerful database operations and dynamic web page generation capabilities. However, when website traffic increases, MySQL can become a bottleneck, resulting in longer response times. To solve this problem, Redis, as a high-performance cache system, can help us relieve the pressure on MySQL.
We can store the MySQL query results in Redis, so that when the same query occurs again, the system can directly obtain data from Redis without accessing the MySQL database again. This method not only improves access speed, but also reduces the burden on the database and extends the life cycle of the database.
Let's see how to implement this caching mechanism in PHP:
<?php
// Connect to Redis
$redis = new Redis();
$redis->connect('127.0.0.1', 6379);
// Connect to MySQL
$mysqli = new mysqli('127.0.0.1', 'username', 'password', 'database');
// Suppose we have a query $query = "SELECT * FROM users WHERE id = 1";
// Generate a unique cache key $cacheKey = md5($query);
// Try to get cached from Redis $cachedResult = $redis->get($cacheKey);
if ($cachedResult !== false) {
// If there is a cache in Redis, directly return the cache result $result = unserialize($cachedResult);
echo "get data from Redis\n";
} else {
// If there is no cache in Redis, query from MySQL and cache to Redis
$result = $mysqli->query($query);
$redis->set($cacheKey, serialize($result), 3600); // Cache for one hour echo "get data from MySQL and cache to Redis\n";
}
// Processing results...
?>In this example, we first try to get the cached data from Redis, if the cached data is not found, query it from MySQL and cache the result into Redis. This approach greatly reduces the number of direct queries to MySQL.
However, there are some things to note when implementing cache acceleration:
- Cache consistency : When data is updated in MySQL, the cache in Redis needs to be updated in time, otherwise it may cause data inconsistency. You can use a publish-subscribe pattern or transaction to ensure consistency in your data.
- Cache penetration : When a large number of queries do not exist in Redis, it may cause all requests to hit MySQL, forming cache penetration. You can use a Bloom filter to solve this problem.
- Cache avalanche : When a large number of caches fail at the same time, all requests may be hit to MySQL, forming a cache avalanche. This can be avoided by setting different expiration times or using distributed locks.
In practical applications, we can further optimize:
- Leveled cache : Use in-memory caches (such as APC or Memcached) as the first level cache and Redis as the second level cache, which can further improve performance.
- Data warm-up : When the system starts, some common data are loaded into Redis in advance to reduce the response time during cold startup.
- Dynamic adjustment : Dynamically adjust the cache policy and expiration time according to system load and data access frequency.
Through these methods, we can make full use of the advantages of Redis to achieve cache acceleration in PHP and MySQL, thereby greatly improving the performance and user experience of the system. However, the implementation of the cache mechanism needs to be customized according to specific business needs and system architecture to ensure that while improving performance, no new problems are introduced.
The above is the detailed content of Methods for implementing cache acceleration in PHP and MySQL combined with Redis. For more information, please follow other related articles on the PHP Chinese website!
Hot AI Tools
Undress AI Tool
Undress images for free
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Clothoff.io
AI clothes remover
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
How to use PHP combined with AI to achieve text error correction PHP syntax detection and optimization
Jul 25, 2025 pm 08:57 PM
To realize text error correction and syntax optimization with AI, you need to follow the following steps: 1. Select a suitable AI model or API, such as Baidu, Tencent API or open source NLP library; 2. Call the API through PHP's curl or Guzzle and process the return results; 3. Display error correction information in the application and allow users to choose whether to adopt it; 4. Use php-l and PHP_CodeSniffer for syntax detection and code optimization; 5. Continuously collect feedback and update the model or rules to improve the effect. When choosing AIAPI, focus on evaluating accuracy, response speed, price and support for PHP. Code optimization should follow PSR specifications, use cache reasonably, avoid circular queries, review code regularly, and use X
PHP calls AI intelligent voice assistant PHP voice interaction system construction
Jul 25, 2025 pm 08:45 PM
User voice input is captured and sent to the PHP backend through the MediaRecorder API of the front-end JavaScript; 2. PHP saves the audio as a temporary file and calls STTAPI (such as Google or Baidu voice recognition) to convert it into text; 3. PHP sends the text to an AI service (such as OpenAIGPT) to obtain intelligent reply; 4. PHP then calls TTSAPI (such as Baidu or Google voice synthesis) to convert the reply to a voice file; 5. PHP streams the voice file back to the front-end to play, completing interaction. The entire process is dominated by PHP to ensure seamless connection between all links.
PHP realizes commodity inventory management and monetization PHP inventory synchronization and alarm mechanism
Jul 25, 2025 pm 08:30 PM
PHP ensures inventory deduction atomicity through database transactions and FORUPDATE row locks to prevent high concurrent overselling; 2. Multi-platform inventory consistency depends on centralized management and event-driven synchronization, combining API/Webhook notifications and message queues to ensure reliable data transmission; 3. The alarm mechanism should set low inventory, zero/negative inventory, unsalable sales, replenishment cycles and abnormal fluctuations strategies in different scenarios, and select DingTalk, SMS or Email Responsible Persons according to the urgency, and the alarm information must be complete and clear to achieve business adaptation and rapid response.
How to set environment variables in PHP environment Description of adding PHP running environment variables
Jul 25, 2025 pm 08:33 PM
There are three main ways to set environment variables in PHP: 1. Global configuration through php.ini; 2. Passed through a web server (such as SetEnv of Apache or fastcgi_param of Nginx); 3. Use putenv() function in PHP scripts. Among them, php.ini is suitable for global and infrequently changing configurations, web server configuration is suitable for scenarios that need to be isolated, and putenv() is suitable for temporary variables. Persistence policies include configuration files (such as php.ini or web server configuration), .env files are loaded with dotenv library, and dynamic injection of variables in CI/CD processes. Security management sensitive information should be avoided hard-coded, and it is recommended to use.en
How to make PHP container support automatic construction? Continuously integrated CI configuration method of PHP environment
Jul 25, 2025 pm 08:54 PM
To enable PHP containers to support automatic construction, the core lies in configuring the continuous integration (CI) process. 1. Use Dockerfile to define the PHP environment, including basic image, extension installation, dependency management and permission settings; 2. Configure CI/CD tools such as GitLabCI, and define the build, test and deployment stages through the .gitlab-ci.yml file to achieve automatic construction, testing and deployment; 3. Integrate test frameworks such as PHPUnit to ensure that tests are automatically run after code changes; 4. Use automated deployment strategies such as Kubernetes to define deployment configuration through the deployment.yaml file; 5. Optimize Dockerfile and adopt multi-stage construction
Twilio call keeping and recovery: Meeting mode with independent call leg processing
Jul 25, 2025 pm 08:42 PM
This article elaborates on two main methods to realize call hold and unhold in Twilio. The preferred option is to leverage Twilio's Conference feature to easily enable call retention and recovery by updating the conference participant resources, and to customize music retention. Another approach is to deal with independent call legs, which requires more complex TwiML logic, passed, and arrived management, but is more cumbersome than meeting mode. The article provides specific code examples and operation steps to help developers efficiently implement Twilio call control.
Get an alternative to a specified column value in an array
Jul 25, 2025 pm 07:39 PM
This article aims to provide an alternative to obtaining the specified column value of an array in PHP, and solve the problem of repeated definition of the array_column() function. For old versions of PHP and new versions of PHP, corresponding solutions are given respectively, and code examples are provided to help developers better process array data.
How to build an independent PHP task container environment. How to configure the container for running PHP timed scripts
Jul 25, 2025 pm 07:27 PM
Building an independent PHP task container environment can be implemented through Docker. The specific steps are as follows: 1. Install Docker and DockerCompose as the basis; 2. Create an independent directory to store Dockerfile and crontab files; 3. Write Dockerfile to define the PHPCLI environment and install cron and necessary extensions; 4. Write a crontab file to define timing tasks; 5. Write a docker-compose.yml mount script directory and configure environment variables; 6. Start the container and verify the log. Compared with performing timing tasks in web containers, independent containers have the advantages of resource isolation, pure environment, strong stability, and easy expansion. To ensure logging and error capture
