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This article mainly explains "what is the difference between phpredis and predis". The content in the article is simple and clear, easy to learn and understand. Please follow the editor's train of thought to study and learn "what is the difference between phpredis and predis".

Phpredis and predis

Phpredis is a php extension written in c, and predis is written in pure php.

Of course, the difference in performance is that the extension is better, but in fact, there is a bigger difference between the two implementations, that is, the maintenance of connectivity.

1. Phpredis uses c in the extension to maintain a long connection from php-fpm to redis, so multiple requests on a php-fpm process reuse the same connection. The pconnect of phpredis is the persistent connection mode.

2. Predis uses the socket of php to connect to redis, so you need to connect to redis every time you request.

It can be seen that laravel officially recommends the use of predis, because pure php implementation, only need composer to install, very much in line with the idea of convenient laravel.

The performance gap between phpredis and predis does not span an order of magnitude. Of course, you have to consider the specific business. If the business is very dependent on redis and the stand-alone qps needs to be supported, it is recommended to use phpredis. If you only use laravel to implement small-scale business using redis, it is not recommended to change predis.

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