一,安装Libmemcached

#cd libmemcached-1.0.16
#./configure -prefix=/usr/local/libmemcached 
-with-memcached=/usr/local/memcached/bin/memcached
#make
#make install

注:
如果报”./libmemcached-1.0/memcached.h:46:27: error: tr1/cinttypes: No such file or directory”错误,则需要升级gcc版本.

二,安装Memcached PHP扩展

#cd memcached-2.1.0
找到phpize和php-config的路径,我的分别是/usr/local/bin/phpize和/usr/bin/php-config.
#/usr/local/bin/phpize
#./configure --with-php-config=/usr/bin/php-config 
--with-libmemcached-dir=/usr/local/libmemcached
#make
#make install
安装成功后会生成memcached.so,把路径加到php.ini的extension=xxx里.

CentOS-6.4 安装 PHP Memcached 扩展

原文：http://www.cnblogs.com/phpdragon/p/4507833.html