安装redis
redis的安装方法有2种：下载源码编译安装和使用homebrew安装。本文采用后一种方法，如需下载源码编译安装参考 mac下安装配置redis。通过homebrew安装redis:
$ brew install redis
终端输出
==> Downloading http://download.redis.io/releases/redis-3.2.3.tar.gz ######################################################################## 100.0% ==> make install PREFIX=/usr/local/Cellar/redis/3.2.3 CC=clang ==> Caveats To have launchd start redis now and restart at login: brew services start redis Or, if you don't want/need a background service you can just run: redis-server /usr/local/etc/redis.conf ==> Summary 🍺 /usr/local/Cellar/redis/3.2.3: 10 files, 1.7M, built in 21 seconds
从以上日志输出可以看出，如果需要给redis服务端指定配置文件，启动命令应该是这样的:
$ redis-server /usr/local/etc/redis.conf
配置文件
安装完成后redis默认的配置文件redis.conf位于
/usr/local/etc
同时，redis-sentinel.conf也在这里。
使用cat命令查看redis.conf：
$ cat /usr/local/etc/redis.conf
终端输出文件内容（删掉了大部分注释）：
bind 127.0.0.1 ::1 bind 127.0.0.1 port 6379 tcp-backlog 511 timeout 0 tcp-keepalive 300 ################################# GENERAL ##################################### # By default Redis does not run as a daemon. Use 'yes' if you need it. # Note that Redis will write a pid file in /usr/local/var/run/redis.pid when daemonized. daemonize no supervised no pidfile /var/run/redis_6379.pid loglevel notice logfile "" # Set the number of databases. The default database is DB 0, you can select # a different one on a per-connection basis using SELECT <dbid> where # dbid is a number between 0 and 'databases'-1 databases 16 ################################ SNAPSHOTTING ################################ save 900 1 save 300 10 save 60 10000 stop-writes-on-bgsave-error yes rdbcompression yes rdbchecksum yes dbfilename dump.rdb # The working directory. dir /usr/local/var/db/redis/ ################################# REPLICATION ################################# slave-serve-stale-data yes slave-read-only yes repl-diskless-sync no repl-diskless-sync-delay 5 repl-disable-tcp-nodelay no slave-priority 100 ################################## SECURITY ################################### ################################### LIMITS #################################### ############################## APPEND ONLY MODE ############################### appendonly no appendfilename "appendonly.aof" appendfsync everysec no-appendfsync-on-rewrite no auto-aof-rewrite-percentage 100 auto-aof-rewrite-min-size 64mb aof-load-truncated yes ################################ LUA SCRIPTING ############################### lua-time-limit 5000 ################################ REDIS CLUSTER ############################### ################################## SLOW LOG ################################## slowlog-max-len 128 ################################ LATENCY MONITOR ############################## latency-monitor-threshold 0 ############################# EVENT NOTIFICATION ############################## notify-keyspace-events "" ############################### ADVANCED CONFIG ############################### hash-max-ziplist-entries 512 hash-max-ziplist-value 64 list-max-ziplist-size -2 list-compress-depth 0 set-max-intset-entries 512 zset-max-ziplist-entries 128 zset-max-ziplist-value 64 hll-sparse-max-bytes 3000 activerehashing yes client-output-buffer-limit normal 0 0 0 client-output-buffer-limit slave 256mb 64mb 60 client-output-buffer-limit pubsub 32mb 8mb 60 hz 10 aof-rewrite-incremental-fsync yes
官网上对于如何配置redis的描述:
Redis is able to start without a configuration file using a built-in default configuration, however this setup is only recommended for testing and development purposes. The proper way to configure Redis is by providing a Redis configuration file, usually called redis.conf.
根据以上内容,如果启动时不指定配置文件,redis会使用程序中内置的默认配置.但是只有在开发和测试阶段才考虑使用内置的默认配置，正式环境最好还是提供配置文件，并且一般命名为redis.conf
启动redis
可以通过以下命令启动redis：
$ redis-server /usr/local/etc/redis.conf
终端输出
8568:M 11 Sep 21:37:46.839 * Increased maximum number of open files to 10032 (it was originally set to 256). _._ _.-``__ ''-._ _.-`` `. `_. ''-._ Redis 3.2.3 (00000000/0) 64 bit .-`` .-```. ```\/ _.,_ ''-._ ( ' , .-` | `, ) Running in standalone mode |`-._`-...-` __...-.``-._|'` _.-'| Port: 6379 | `-._ `._ / _.-' | PID: 8568 `-._ `-._ `-./ _.-' _.-' |`-._`-._ `-.__.-' _.-'_.-'| | `-._`-._ _.-'_.-' | http://redis.io `-._ `-._`-.__.-'_.-' _.-' |`-._`-._ `-.__.-' _.-'_.-'| | `-._`-._ _.-'_.-' | `-._ `-._`-.__.-'_.-' _.-' `-._ `-.__.-' _.-' `-._ _.-' `-.__.-' 8568:M 11 Sep 21:37:46.844 # Server started, Redis version 3.2.3 8568:M 11 Sep 21:37:46.845 * The server is now ready to accept connections on port 6379
可以看出redis服务器启动成功，并在监听6379端口的网络连接。
注意: 使用命令$ redis-server也可以启动,此时并不会加载任何配置文件,使用的是程序中内置(built-in)的默认配置.
检测redis服务器是否启动
重新打开一个终端窗口，输入命令
$ redis-cli ping
该终端输出
pong
说明服务器运作正常。
关闭redis
关闭redis有2种方法：
方法1
在执行启动命令的终端窗口使用ctrl+c,此时第一个窗口输出
8773:M 11 Sep 21:46:26.581 # User requested shutdown... 8773:M 11 Sep 21:46:26.581 * Saving the final RDB snapshot before exiting. 8773:M 11 Sep 21:46:26.583 * DB saved on disk 8773:M 11 Sep 21:46:26.583 * Removing the pid file. 8773:M 11 Sep 21:46:26.583 # Redis is now ready to exit, bye bye...
然后在另外一个终端窗口执行$ redis-cli ping,输出
Could not connect to Redis at 127.0.0.1:6379: Connection refused
说明确实已关闭
方法2
在另外一个终端窗口执行$ redis-cli shutdown,此时第一个窗口输出
8773:M 11 Sep 21:46:26.581 # User requested shutdown... 8773:M 11 Sep 21:46:26.581 * Saving the final RDB snapshot before exiting. 8773:M 11 Sep 21:46:26.583 * DB saved on disk 8773:M 11 Sep 21:46:26.583 * Removing the pid file. 8773:M 11 Sep 21:46:26.583 # Redis is now ready to exit, bye bye...
然后在另外一个终端窗口执行$ redis-cli ping,输出
Could not connect to Redis at 127.0.0.1:6379: Connection refused
说明确实已关闭
安装phpredis扩展
brew install php70-redis #这里根据你的PHP版本决定，我的是php70，所以安装php70的扩展
编辑你的php.ini，再最后添加上下面代码：
extension=redis.so
检查是否有redis扩展
php -m | grep redis
最后PHP测试代码：
<?php $redis = new redis(); $redis->connect('127.0.0.1', 6379); $redis->set('test',"11111111111"); $result = $redis->get('test'); var_dump($result); ?>
浏览器显示出下图表示安装成功：
