centos 6.5 php-memcache扩展安装

php的扩展memcache，不支持cas，因此咱们要装memcached扩展，memcached扩展是基于libmemcached，因此要先安装libmemcached

1、下载软件

一、libmemcached下载地址：http://pecl.php.net/package/memcached

文件：memcached-2.2.0.tgz

二、php-memcached下载地址：https://launchpad.net/libmemcached/+download

文件：libmemcached-1.0.18.tar.gz 

2、安装libmemcached

[root@vm15 local]# mkdir -p libmemcached
[root@vm15 local]# tar zxvf libmemcached-1.0.18.tar.gz 
[root@vm15 local]# cd libmemcached-1.0.18
[root@vm15 libmemcached-1.0.18]# ./configure --prefix=/usr/local/libmemcached --with-memcached
[root@vm15 libmemcached-1.0.18]# make
[root@vm15 libmemcached-1.0.18]# make install

3、安装php-memcached

[root@vm15 local]# mkdir -p phpmemcached 
[root@vm15 local]# tar zxvf memcached-2.2.0.tgz
[root@vm15 local]# cd memcached-2.2.0
[root@vm15 memcached-2.2.0]# /usr/local/php/bin/phpize

输出：
Configuring for:
PHP Api Version: 20131106
Zend Module Api No: 20131226
Zend Extension Api No: 220131226
[root@vm15memcached-2.2.0]#./configure --enable-memcached --with-php-config=/usr/local/bin/php-config --with-libmemcached-dir=/usr/local/libmemcached --disable-memcached --disable-memcached-sasl 
[root@vm15 memcached-2.2.0]# make
[root@vm15 memcached-2.2.0]# make install

输出：
Installing shared extensions: /usr/local/php/lib/php/extensions/no-debug-zts-20131226/
[root@vm15 memcached-2.2.0]# ll /usr/local/php/lib/php/extensions/no-debug-zts-20131226/

total 2140
-rwxr-xr-x. 1 root root 325608 Dec 30 15:59 memcached.so
-rwxr-xr-x. 1 root root 453766 Dec 30 17:44 memcache.so
-rwxr-xr-x. 1 root root 540834 Dec 19 15:38 opcache.so
-rwxr-xr-x. 1 root root 861055 Dec 30 16:47 redis.so

[root@vm15 memcached-2.2.0]# vi + /usr/local/php/lib/php.ini
找到这段，修改（将报错内容加入extension_dir ）：

extension_dir = "/usr/local/lib/php/extensions/no-debug-non-zts-20131226/"

而后下面加上：
extension=memcache.so 
[Memcache] 
memcache.allow_failover = 1 
memcache.max_failover_attempts=20 
memcache.chunk_size =8192
[root@vm15 memcached-2.2.0]#service php-fpm start
查看phpinfo能够看到支持了

ps:以前装了3.0.8，结果不显示，就换了上述版本，

memcached安装在 http://www.javashuo.com/article/p-etuzajkx-cp.html

php及php-fpm安装在 http://www.javashuo.com/article/p-zbmgcmsr-dm.html