error when trying to connect with sftp - php

Question

I am trying to establish connection using sftp class
my code:
$host = 'some ip address';
$username = 'username';
$pass = 'password';
$sftp = new SFTPConnection($host, 22);
$sftp->login($username, $pass);
When i run this script i get message Could not authenticate with username and password
When i use same user and pass in fileZilla with sftp, then is ok, I can establish connection, but with script i cant
Anyone know what is the problem?

Answer 1

Ok, here what was the problem...
My IP address wasnt been allowed on FTP server?! Now when they put my IP on whitelist, everything working just fine.
Thank you guys for your effort.

Answer 2

Try to add this code in your sftp.php in login(){} function. Then tell what error does it give:
if (!extension_loaded('ssh2'))
{
throw new Exception("Extension ssh2 has to be loaded to use this class. Please enable in php.ini.");
}
if (! #ssh2_auth_password($this->connection, $username, $password))
throw new Exception("Could not authenticate with username $username " . "and password $password.");
$this->sftp = #ssh2_sftp($this->connection);
if (! $this->sftp)
throw new Exception("Could not initialize SFTP subsystem.");
Edit your code to do the following[ as some people say that we should authenticate both via username_password and as well as hostKeyAuthentication ]
-------------------------------
The above description shows that:
The issue lies in the php extension assuming that you’re going to authenticate either with a password or with a public key. Because of that assumption, authenticating with a password will give you a failure and could throw you off into the wrong direction (brief description is in the link: Must Read).
$connection = ssh2_connect($host, $port);
ssh2_auth_password($connection, $username, $password);
if (ssh2_auth_pubkey_file($connection, $username, $pubkey, $privatekey)) {
echo "Public Key Authentication Successful";
}
else {
echo 'Public Key Authentication Failed' ;
return false;
}