Fend框架需要安装 memcached 扩展

安装依赖
首先是 memcached，这个扩展需要 libmemcached 客户端库，否则会出现如下错误

checking for libmemcached location... configure: error: memcached support requires libmemcached. Use --with-libmemcached-dir=<DIR> to specify the prefix where libmemcached headers and library are located
ERROR: `/var/tmp/memcached/configure --with-libmemcached-dir=no' failed

可以通过如下方法安装

[root@localhost]# yum install libmemcached libmemcached-devel

而 memcache 模块使用了函数 zlib 来支持数据压缩，因此安装此模块需要安装 Zlib 模块。否则会出现如下错误:

checking for the location of zlib... configure: error: memcache support requires ZLIB. Use --with-zlib-dir=<DIR> to specify prefix where ZLIB include and library are located
ERROR: `/var/tmp/memcache/configure --enable-memcache-session=No' failed

可以如下方法用 yum 来安装：

[root@localhost]# yum install zlib zlib-devel

安装 memcached 扩展
下载：

wget   https://pecl.php.net/get/memcached-3.1.5.tgz  

解压&安装

tar -zxvf memcached-3.1.5.tgz 
cd memcached-3.1.5 
/usr/local/php/bin/phpize && ./configure && make && make install  
//编译后，修改php.ini 文件 
//增加  
extension = memcached.so 
php -m |grep memcached   查到有的。 

至此： 安装完成 。