Assume that PHP 5.6 installed and working properly.
Now execute following command
sudo yum install php56w-devel sudo yum install git-core git clone git://github.com/nicolasff/phpredis.git cd phpredis/ sudo phpize sudo ./configure sudo make sudo make install sudo echo "extension=redis.so">/etc/php.d/redis.ini sudo apachectl restart
Its pretty simple!