vim /etc/php5/fpm/conf.d/20-redis.ini
extension=redis.so session.save_handler = redis session.save_path = "tcp://IP:PORT"
多个Nginx区别ID存入Redis vim /etc/php5/fpm/conf.d/20-redis.ini
session.save_path = "tcp://IP:PORT?prefix=PHPREDIS_SESSION_NAME:"