The selection of Laravel cache drivers needs to be determined based on the project size and deployment environment. 1. File cache is suitable for local development or small projects. Its advantage is that it does not require external services. The disadvantage is that it has poor concurrency and is not suitable for multiple servers. 2. Database cache is suitable for scenarios with existing database connections. The advantage is that data can be persisted, and the disadvantage is that it affects database performance. 3. Redis is suitable for high-concurrency and distributed projects. It has good performance and supports clusters, but requires additional installation of services. 4. Memcached is suitable for key-value pair cache, which is fast but has limited functions and does not support persistence. Drivers can be switched according to the environment, such as local file and redis in production environment.
Laravel supports a variety of cache drivers, and choosing the right driver has a great impact on application performance and scalability. In actual development, the common ones are file, database, memcached and redis . They each have their own advantages and disadvantages, and the applicable scenarios are also different. The following is a few key points to help you determine which project is more suitable for you.
1. Simple start: File cache is suitable for small projects
If you are doing local development or deploying a small project with little visits, file caching is the easiest and most direct choice. It writes cached data to the file system on the server without additional services or configuration.
- ? Advantages: No need to install any external services, use out of the box
- ? Disadvantages: Poor concurrency performance, untimely cleaning and easy to accumulate files, and is not suitable for sharing on multiple servers.
Suitable for: local debugging, small websites, demonstration environments and other non-production scenarios.
2. Database Cache: Transitional Solution when existing database support
Database cache stores cached data in database tables, which is cache table by default. This driver is suitable for use when you already have a database connection and don't want to introduce Redis or Memcached.
- ? Advantages: Data can be persisted and easy to view and debug
- ? Disadvantages: slow reading and writing speed, frequent queries will affect database performance
Remember to run it before use:
php artisan cache:table php artisan migrate
Note: After too many cache entries, it is recommended to execute php artisan cache:prune to clean up expired data regularly.
3. High Performance Top Choice: Redis is ideal for most projects
Redis is one of the most recommended cache drivers in Laravel, especially suitable for scenarios with high concurrency and distributed deployment. It is fast, supports rich data structures, and can be used with Laravel's queues, Session and other functions.
- ? Advantages: High performance, cluster support, and can be shared with Session
- ? Disadvantages: Additional Redis service is required, and the configuration is slightly complicated
When configuring Redis, it is recommended to use predis or phpredis extensions. If you deploy multiple applications, you can isolate the cache with different Redis database or key prefixes.
4. Lightweight Cache: Memcached is suitable for specific scenarios
Memcached is an old-fashioned memory caching system. Although it is not as rich as Redis, it is lighter and suitable for caching needs based on key-value pairs.
- ? Advantages: High memory efficiency and fast speed
- ? Disadvantages: It does not support persistence, limited functions, and multiple node configurations are a little troublesome
Memcached is more suitable for scenarios where "no fear of losing cache", such as temporary hot data.
How to choose? Judging from project scale and deployment environment
- Standalone deployment, small traffic → use file or database
- Multi-server, high concurrency → Redis must be used
- There are operation and maintenance restrictions, pursuit of ultimate performance → Memcached can be considered
In addition, the driver can also be switched according to the environment. For example, in the .env file:
CACHE_DRIVER=redis
In this way, you can use file locally and replace it with redis after it is online.
Basically that's it. It is actually not difficult to choose a cache driver. The key is to understand the current project requirements and resource conditions.
The above is the detailed content of Comparing and Choosing Caching Drivers for Laravel. For more information, please follow other related articles on the PHP Chinese website!
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