第一步需要 安装 libmemcache

下载官网https://launchpad.net/libmemcached/+download

第二步下载 memcached 扩展

http://pecl.php.net/package-search.php?pkg_name=memcached&bool=AND&submit=Search

memcached 扩展编译

phpize

./configure –with-php-config=/usr/local/php/bin/php-config –enable-memcached –with-libmemcached-dir=/usr/local/libmemcached –disable-memcached-sasl

开启php.ini memcached.so 扩展即可