Redis is an in-memory data structure project implementing a distributed, in-memory key–value database with optional durability. Redis supports different kinds of abstract data structures, such as strings, lists, maps, sets, sorted sets, HyperLogLogs, bitmaps, streams, and spatial indexes.
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
)
?>