Delete Folder With Contents In SSH Server - php

Question

I'm trying to delete a folder and all the files that in it, in a SSH server.
The thing is that I don't know how ssh2 works. I changed the connection to ssh2, but maybe those function doesn't works in a ssh server, I don't know...
My code:
$ftpuser = '***';
$ftppass = '***';
$dir = 'files/someFolder/';
$connection = ssh2_connect('**.***.***.***',22);
if(!$connection) {
error_log("Couldn't connect to $ftp_server");
exit;
}
$login_result = ssh2_auth_password($connection, $ftpuser, $ftppass);
ftp_chdir($connection, $dir);
$folders_files = ftp_nlist($connection, '.');
foreach ($folders_files as $folder_file) {
ftp_delete($connection, $folder_file);
}
ftp_rmdir($connection, $dir);
There are some errors:
PHP Warning: ftp_chdir(): supplied resource is not a valid FTP Buffer resource in...
PHP Warning: ftp_nlist(): supplied resource is not a valid FTP Buffer resource in...
PHP Warning: Invalid argument supplied for foreach() in...
PHP Warning: ftp_rmdir(): supplied resource is not a valid FTP Buffer resource in...
What the hell is going on here?

Answer 1

You're mixing the ssh2_* functions and the ftp_* functions. They're not interchangeable.
That said I'd recommend using phpseclib, a pure PHP SFTP implementation. An example:
<?php
include('Net/SFTP.php');
$sftp = new Net_SFTP('www.domain.tld');
if (!$sftp->login('username', 'password')) {
exit('Login Failed');
}
$sftp->delete('dirname.remote', true); // deletes a directory and all its contents
?>
The fact that it can recursively delete stuff should be particularly useful to you. ie. if files/someFolder/ contains a folder A that itself contains another folder, folder B, you probably won't be able to delete it with your method whereas with phpseclib's deletion approach can delete it.

Answer 2

You must be inside a non-existent directory.
This code will help you understand what you are doing wrong.
echo "Current directory: " . ftp_pwd($connection) . "\n";
// try to change the directory to somedir
if (ftp_chdir($connection, "files/someFolder/")) {
echo "Current directory is now: " . ftp_pwd($connection) . "\n";
} else {
echo "Couldn't change directory\n";
}