function close()
    {
        if ( $this->stream !== null && $this->stream !== false ) {
            return imap_close($this->stream);
        }
    }
function close()
    {
        if ( $this->stream !== null && $this->stream !== false ) {
            return imap_close($this->stream);
        }
    }
function close ( ) { if ( $ this -> stream !== null && $ this -> stream !== false ) { return imap_close ( $ this -> stream ) ; } }
close the server stream
close the server stream