###1、先安装libevent
yum install gcc libevent libevent-devel
###2、安装libmemcached
https://launchpad.net/libmemcached/1.0/1.0.18/+download/libmemcached-1.0.18.tar.gz
#./configure --prefix=/usr/local/libmemcached --with-memcached ……OK
#make ……error
解决：安装gcc44 gcc44-c++
yum install gcc*
然后
export CC="gcc44"
export CXX="g++44"
###3.重新安装
# ./configure ……OK
#make ……OK
###4、安装memcached
http://pecl.php.net/package/memcached
/home/service/php-5.6.4/bin/phpize
./configure --with-php-config=/home/service/php-5.6.4/bin/php-config --with-libmemcached-dir=/usr/local/libmemcached
make && make install
###5、添加扩展
extension = /dir/memcached.so
