To use Redis client module on CentOS 7, you should run below commands:
sudo yum --enablerepo=epel -y install php-pecl-redis
If everything is okay, you can simply test Redis like below in PHP:
<?php $redis = new Redis(); $redis->connect("127.0.0.1",6379); $redis->auth("password"); // set and get Key $redis->set('key01', 'value01'); print 'key01.value : ' . $redis->get('key01') . "\n"; // append and get Key $redis->append('key01', ',value02'); print 'key01.value : ' . $redis->get('key01') . "\n"; $redis->set('key02', 1); print 'key02.value : ' . $redis->get('key02') . "\n"; // increment $redis->incr('key02', 100); print 'key02.value : ' . $redis->get('key02') . "\n"; // decrement $redis->decr('key02', 51); print 'key02.value : ' . $redis->get('key02') . "\n"; // list $redis->lPush('list01', 'value01'); $redis->rPush('list01', 'value02'); print 'list01.value : '; print_r ($redis->lRange('list01', 0, -1)); // hash $redis->hSet('hash01', 'key01', 'value01'); $redis->hSet('hash01', 'key02', 'value02'); print 'hash01.value : '; print_r ($redis->hGetAll('hash01')); // set $redis->sAdd('set01', 'member01'); $redis->sAdd('set01', 'member02'); print 'set01.value : '; print_r ($redis->sMembers('set01')); ?> # run [cent@dlp ~]$ php use_redis.php key01.value : value01 key01.value : value01,value02 key02.value : 1 key02.value : 101 key02.value : 50 list01.value : Array ( [0] => value01 [1] => value02 ) hash01.value : Array ( [key01] => value01 [key02] => value02 ) set01.value : Array ( [0] => member01 [1] => member02 ) ?>