What is the use of the php_memcache extension?

Memcached is a high-performance distributed memory object caching system for dynamic web applications to reduce database load.

It increases the speed of dynamic, database-driven websites by caching data and objects in memory to reduce the number of database reads. Memcached is based on a hashmap that stores key/value pairs. Its daemon is written in C, but the client can be written in any language and communicates with the daemon through the memcached protocol. (Recommended learning: PHP video tutorial)

Memcache is a project of danga.com. It was first used to serve LiveJournal. Currently, many people around the world use this caching project to build their own large databases. load website to share the pressure on the database.

PHP does not come with memcache extension by default, so to use it, you must first go to the official website to download the extension.

The Memcache module provides convenient process-oriented and object-oriented interfaces for memcached. Memcached is designed to reduce the cost of dynamic web applications. A resident process cache product resulting from loading data from a database.

The Memcache module also provides a session processor (memcache).

Configure PHP

Open the php.ini file and add extension =php_memcache.dll.

Check the installation results

You can use phpinfo() to confirm whether the installation is successful. If mencache is found, the installation is successful.

The above is the detailed content of What is the use of the php_memcache extension?. For more information, please follow other related articles on the PHP Chinese website!