$ tar zxvf libevent-2.0.20-stable.tar.gz
$ cd libevent-2.0.20-stable/
$ ./configure --prefix=/usr/local/libevent
$ make && make install

$ tar zxvf memcached-1.4.39.tar.gz
$ ./configure --prefix=/usr/local/memcached --with-libevent=/usr/local/libevent
$ make && make install

$ cd /usr/local/memcached
$ ./memcached -u root –d 　　 #启动memcached
$ ps -ef |grep memcached     #查看memcached运行状态

$telnet 127.0.0.1 11211
stats     --查看状态
version       --查看版本
set user 1 3000 10 --添加数据
get user  --获取数据
delete user    --删除数据
flush_all --清空所有

$ tar zxvf libmemcached-1.0.18.tar.gz
$ cd libmemcached-1.0.18/
$ ./configure --prefix=/usr/local/libmemcached --with-memcached --enable-sasl
$ make && make install

（1）编辑libmemcached/byteorder.cc文件
在 #include "libmemcached/byteorder.h" 下面增加以下内容：
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif

(2)、编辑clients/memflush.cc文件
将两处 if (opt_servers == false)
替换成 if (opt_servers == NULL)

$ unzip php-memcached-php7.zip
$ cd php-memcached-php7/
$ /usr/local/php/bin/phpize
$ ./configure --enable-memcached --with-php-config=/usr/local/php/bin/php-config --with-libmemcached-dir=/usr/local/libmemcached --enable-memcached-sasl
$ make && make install

<?php
$mem = new Memcached; //创建一个memcache对象
$mem->addServer('127.0.0.1', 11211) or die ("Could not connect"); //连接Memcached服务器
$mem->set('key', 'test'); //设置一个变量到内存中，名称是key 值是test
$val = $mem->get('key'); //从内存中取出key的值
echo $val;
?>