What are the caching technologies in PHP7.0?

With the continuous development of network applications, the requirements for PHP's performance and efficiency are becoming higher and higher. The caching technology in PHP7.0 can improve the performance and efficiency of PHP, and it is also very convenient to use. This article will introduce the caching technology commonly used in PHP7.0.

1. Opcode cache

Opcode cache is the caching technology that comes with PHP7.0. It can convert PHP source code into binary format, thereby saving compilation time when executing the code. There are three types of Opcode caches that come with PHP7.0: APC, Zend OPCache and XCache. Among them, Zend OPcache is the official Opcode cache of PHP7.0, which can improve the performance and efficiency of PHP.

2. Session cache

Session cache is one of the commonly used caching technologies in PHP7.0. It can save user data in the server's cache, thus avoiding frequent access to the database. . In PHP7.0, components such as Memcache and Redis can be used to store Session data.

3. Object caching

Object caching is a technology that stores object data in the cache. In PHP7.0, components such as Memcache and Redis can be used to implement object caching. Object caching can improve PHP's performance and efficiency because it avoids frequent database accesses.

4. Data caching

Data caching is a technology that stores data in cache. In PHP7.0, components such as Memcache and Redis can be used to implement data caching. Data caching can provide good performance and efficiency when responding to client requests because it avoids frequent database accesses.

5. File Caching

File caching is a technology that saves data in files. In PHP7.0, components such as FileCache can be used to implement file caching. Compared with database cache, file cache has faster reading speed but conflicts in data storage and update.

To sum up, the commonly used caching technologies in PHP7.0 include Opcode caching, Session caching, object caching, data caching and file caching. Different caching technologies have different usage scenarios, and specific applications need to be selected based on the actual situation of the project. The use of caching technology can effectively improve the performance and efficiency of PHP applications, which is of great significance for dealing with network application scenarios such as high concurrency.

The above is the detailed content of What are the caching technologies in PHP7.0?. For more information, please follow other related articles on the PHP Chinese website!