new Memcached()的时分报Trying to clone an uncloneable object of class Memcached

new Memcached()的时候报Trying to clone an uncloneable object of class Memcached
memcache的服务端安装的是memcached-1.4.5.tar.gz
我客户端安装了
memcached-2.1.0.tgz
libmemcached-1.0.18.tar.gz
现在用phpinfo能看到已经安装memcached
memcached support enabled
Version  2.1.0
libmemcached version  1.0.18
Session support  yes
igbinary support  yes
json support  no

Directive Local Value Master Value
memcached.compression_factor 1.3 1.3
memcached.compression_threshold 20480 20480
memcached.compression_type fastlz fastlz
memcached.serializer igbinary igbinary
memcached.sess_binary no value no value
memcached.sess_lock_wait 150000 150000
memcached.sess_locking 1 1
memcached.sess_prefix memc.sess.key. memc.sess.key.
但是代码调用new Memcached()的时候报Trying to clone an uncloneable object of class Memcached
------解决方案--------------------
你试试$memcache = new Memcache;