(PECL sam >= 0.1.0)
SAMConnection::disconnect — Disconnects from a Messaging Server
Calling the "disconnect" method on a SAMConnection object disconnects the PHP script from a messaging server. No messages can be sent or received after a connection has been disconnected.
成功时返回 TRUE， 或者在失败时返回 FALSE.
Example #1 Disconnecting from a Messaging Server
<?php
$conn->disconnect();
?>