memcache 与 memcached的区别

Here are some more advanced features and information.

	pecl/memcache	pecl/memcached
First Release Date	2004-06-08	2009-01-29 (beta)
Actively Developed?	Yes	Yes
External Dependency	None	libmemcached
Features
Automatic Key Fixup1	Yes	No
Append/Prepend	No	Yes
Automatic Serialzation2	Yes	Yes
Binary Protocol	No	Optional
CAS	No	Yes
Compression	Yes	Yes
Communication Timeout	Connect Only	Various Options
Consistent Hashing	Yes	Yes
Delayed Get	No	Yes
Multi-Get	Yes	Yes
Session Support	Yes	Yes
Set/Get to a specific server	No	Yes
Stores Numerics	Converted to Strings	Yes

pecl/memcache will convert an invalid key into a valid key for you. pecl/memcached will return false when trying to set/get a key that is not valid.

You do not have to serialize your objects or arrays before sending them to the set commands. Both clients will do this for you.

转载地址： http://code.google.com/p/memcached/wiki/PHPClientComparison