linux 安装memcached 详细

登陆SSH，按照以下步骤操作：
1、安装libevent
    wget https://github.com/downloads/libevent/libevent/libevent-2.0.20-stable.tar.gz
    tar -zxvf libevent-2.0.20-stable.tar.gz
    cd  libevent-2.0.20-stable
    ./configure --prefix=/usr
    make
    make install
    cd ..
    测试libevent是否安装成功：
    # ls -al /usr/lib | grep libevent

2、安装memcached，同时需要安装中指定libevent的安装位置
    wget http://memcached.googlecode.com/files/memcached-1.4.15.tar.gz
    tar zxvf memcached-1.4.15.tar.gz
    cd memcached-1.4.15
    ./configure --with-libevent=/usr
    make
    make install
安装完成后会把memcached 自动放到 /usr/local/bin/memcached
测试是否成功安装memcached：
# ls -al /usr/local/bin/mem*

3、安装Memcache的PHP扩展
①安装PHP的memcache扩展
    yum install zlib-devel*
    wget http://pecl.php.net/get/memcache-2.2.5.tgz
    tar vxzf memcache-2.2.5.tgz
    cd memcache-2.2.5
    /usr/bin/phpize