=item MEMCACHED_CALLBACK_USER_DATA
This allows you to store a pointer to a specifc piece of data. This can be
-retrieved from inside of memcached_fetch_exectue(). Cloning a memcached_st
+retrieved from inside of memcached_fetch_execute(). Cloning a memcached_st
will copy the pointer to the clone.
=item MEMCACHED_CALLBACK_MALLOC_FUNCTION,