无法使用ssh2_scp_recv和ssh2_scp_send发送或接收文件

Question

Not sure what's wrong but I am unable to send or receive file using SSH.

I am using the following code

define('SSH_HOST', 'HOST');
define('SSH_USER', 'USER');
define('SSH_PASS', 'PASSWORD');
$connection = ssh2_connect(SSH_HOST, 22);
ssh2_auth_password($connection, SSH_USER, SSH_PASS); 

$remoteFile = '/remote/absolute/path/file.ext';
$localFile = '/local/absolute/path/file.ext';

if(ssh2_scp_recv($connection, $remoteFile, $localFile)){
    echo("received");
}else{
    echo("NOT received");
}

Neither this nor file_get_contents function is working. The strange thing is that I am able to get file stats by calling

$sftp = ssh2_sftp($connection);
$statinfo = ssh2_sftp_stat($sftp, $remoteFile);

But unable to read file data.

Is there some special permission I have to set on either server?

Answer 1

SCP and SFTP are different things. Probably, SCP is disabled on your server.

Answer 2

I would use phpseclib, a pure PHP SFTP implementation . Easier to use and easier to diagnose problems with it due to its logging capabilities. ie.

<?php
include('Net/SFTP.php');
define('NET_SSH2_LOGGING', NET_SSH2_LOG_COMPLEX);

$ssh = new Net_SFTP('www.domain.tld');
if (!$ssh->login('username', 'password')) {
    exit('Login Failed');
}

$ssh->put('filename.ext', 'zzzzzzzzzzzzzzz');
echo $ssh->getLog();
?>