How to configure saving phpSession to redis

To save phpSession to redis, the first thing to do is to install redis.

Installation: http://redis.io/download

InstallationDownload, extract and compile Redis with:$ wget http://download.redis.io/releases/redis-2.8.19.tar.gz$ tar xzf redis-2.8.19.tar.gz$ cd redis-2.8.19$ makeThe binaries that are now compiled are available in the src directory. Run Redis with:$ src/redis-serverYou can interact with Redis using the built-in client:$ src/redis-cliredis> set foo barOKredis> get foo"bar"

Then install phpredis extension redis. so

Installation method reference: http://www.lecloud.net/post/3378834922/install-redis-php-extension-phpredis-with

/// // The following code is for reference to the website installation method, please adjust it according to your actual installation location, ///////////////// // cd/usr/localsudo mkdir srccd/usr/local /srcsudo mkdir phpredis-buildcd phpredis-buildsudo git clone -- depth 1 git: // github.com/owlient/phpredis.gitcd phpredissudo phpizesudo. /configuresudo makesudo make installcd/usr/local/lib/php5/sudo gedit php. if extension_dir is not configured for ini, configure cp redis in your extension path. so/usr/local/lib/php5/extension/join a row: extension = redis. so restart nginx and php-fpm and output phpinfo. the redis extension installation is complete.

Set php. ini

Find; session. save_handler = files and change it to session. save_handler = redis. changing the original session storage mode to the micro-redis mode will increase the speed, because redis is faster in memory than reading files.

Find; session. save_path = "/tmp" and change it to session. save_path = "tcp: // 127.0.0.1: 8888", which directs to the local tcp service, which will be started by our redis

Restart nginx and php-fpm and output phpinfo. the session storage mode and path are changed.

Start redis service

redis-server --port 8888 &

Compile php code

 'Fanqie', 'CCC '=> 'Hello redis'); $ redis = new redis (); $ redis-> connect ('2017. 127. 0.0.1 ', 8888); echo 'sessionid >>>>>>> PHPREDIS_SESSION :'. session_id (); echo'
'; Echo'
'; // Redis uses session_id as the key and stores echo in the form of string' obtained through redis in php >>>>>> '. $ redis-> get ('phpredis _ SESSION :'. session_id (); echo'
'; Echo'
'; Echo' obtained through php session >>>>>>
'; Echo'
';var_dump($_SESSION['test_session']);echo '
';

Page output, we can see that we have successfully stored and obtained the stored value through redis

Sessionid >>>>>>> PHPREDIS_SESSION: fmd75d3dfrlkp43eh567f7dsi5 obtained through redis in php >>>>>> test_session | a: 2: {s: 4: "name"; s: 6: "fanqie"; s: 3: "ccc"; s: 12: "hello redis";} obtained by using session in php >>>>>>> array (2) {["name"] => string (6) "fanqie" ["ccc"] => string (12) "hello redis "}

You can use the redis client to view the hello redis record that has been stored in the redis database.

dangcheng@dangcheng-pc:~$ redis-cli -p 8888127.0.0.1:8888> select 0OK127.0.0.1:8888> keys *1) "PHPREDIS_SESSION:fmd75d3dfrlkp43eh567f7dsi5"127.0.0.1:8888> get PHPREDIS_SESSION:fmd75d3dfrlkp43eh567f7dsi5"test_session|a:2:{s:4:\"name\";s:6:\"fanqie\";s:3:\"ccc\";s:12:\"hello redis \";}"127.0.0.1:8888>