Install Redis on server Source

sudo yum install epel-release
sudo yum --enablerepo=remi install redis

Start Redis

sudo systemctl enable redis
sudo systemctl start redis
sudo systemctl status redis

Test Redis Working

redis-cli ping

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Install Redis PHP Extention Source

sudo yum -y install php-devel
sudo yum -y install git
cd /tmp
git clone git://github.com/nicolasff/phpredis.git
cd phpredis
phpize
./configure
make
make test
sudo -s make install

Add Redis Extention to php.ini

get your php.ini file path

php --ini

add extension=redis.so to php.ini file

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if get redis connection exception permission denied Error do below commands Source

The socket must be accessible for www-data. You first have to change the chmod of the socket to 770 that the redis group can access it, make changes in /etc/redis/redis.conf:

unixsocketperm 770

and then add www-data to the redis group in /etc/group:

redis:x:110:www-data