Description:
------------
Memcache->close() does not close connections of opened sockets to memcache servers. This is only for connections created by addServer methods.
It's all ok for connections created by the connect method.




---
From manual page: http://www.php.net/memcache.addserver#refsect1-memcache.addserver-description
---


Test script:
---------------
// This closes connection
$memcache = new Memcache;
$memcache->connect('memcache.server', 11211);
$memcache->get('sample');
$memcache->close();
echo shell_exec('tree /proc/'.getmypid().'/fd/')."\n";

// This does not close connection
$memcache = new Memcache;
$memcache->addServer('memcache.server', 11211);
$memcache->get('sample');
$memcache->close();
echo shell_exec('tree /proc/'.getmypid().'/fd/')."\n";

Expected result:
----------------
I expect not viewing the socket file descriptor.

/proc/23592/fd/
|-- 0 -> /dev/pts/10
|-- 1 -> /dev/pts/10
|-- 2 -> /dev/pts/10
`-- 3 -> pipe:[193952992]

/proc/23592/fd/
|-- 0 -> /dev/pts/10
|-- 1 -> /dev/pts/10
|-- 2 -> /dev/pts/10
`-- 3 -> pipe:[193953002]


Actual result:
--------------
/proc/23592/fd/
|-- 0 -> /dev/pts/10
|-- 1 -> /dev/pts/10
|-- 2 -> /dev/pts/10
`-- 3 -> pipe:[193952992]

/proc/23592/fd/
|-- 0 -> /dev/pts/10
|-- 1 -> /dev/pts/10
|-- 2 -> /dev/pts/10
|-- 3 -> socket:[193953001]
`-- 4 -> pipe:[193953002]