Description:
------------
http://us.php.net/manual/en/memcached.fetch.php

The example displayed has incorrect expected output.
It states that the output would look something like:
array(
    array(),
    array()
)

That is not correct. The docs state that the function returns the next result, 
which means the output would look like:
array()
array()


So either the expected output is incorrect, or the docs are incorrect.