(PECL ssh2 >= 1.3)
ssh2_send_eof — Send EOF to stream
$channel
) : boolSends an EOF to the stream; this is typically used to close standard input, while keeping output and error alive. For example, one can send a remote process some data over standard input, close it to start processing, and still be able to read out the results without creating additional files.
channelAn SSH stream; can be acquired through functions like ssh2_fetch_stream() or ssh2_connect().
成功时返回 true， 或者在失败时返回 false。