OK, so accessing other servers from your own via either ftp or sftp... I have written a small class to handle either.. It is obviously new and could easily be improved so thought i would throw it out here and see what other people think (stackoverflow gets a hell of a lot of views so hopefully this could help someone else), and how they can improve on it... so i guess the question is... how can this be improved?

```
class ftp_sftp{
//determine, if ssh, to use phpseclib or php's inbuilt ssh_sftp 'libssh'
public $ssh_type = 'phpseclib';
//set ths path to the directory containing the entire phpseclib files
public $phpseclib_path = 'scripts/phpseclib0.3.0';

//private vars generated by this class
public $host;
public $username;
public $password;
public $connection_type;
public $port_number;
public $connection = false;

//contruct method which will attempt to set the connection details and automatically attempt to establisha connection to the server
public function __construct( $host, $username, $password, $connection_type, $port_number = false ){

    //add the webroot to the beginning of the $this->phpseclib_path (this is bespoke to my own configuration)
    $this->phpseclib_path = WEBROOT_PRIVATE.$this->phpseclib_path;

    //setting the classes vars
    $this->host         = $host;
    $this->username     = $username;
    $this->password     = $password;
    $this->connection_type = $connection_type;

    //set the port number to defaults based on connection type if none passed
    if( $port_number === false ){
        if( $connection_type == 'ftp' ){
            $port_number = 21;
        } else {
            $port_number = 22;
        }
    }
    $this->port_number = $port_number;

    //now set the server connection into this classes connection var
    $this->connection = $this->connect();
}

//tests the details passed and tries to establish a connection, returns false on fail.
function connect(){
    br($this->connection_type);
    switch( $this->connection_type )
        {
            case 'ftp':
                        $connection = ftp_connect($this->host);
                        $login = ftp_login($connection, $this->username, $this->password);

                        //if no connection was possible return false and leave $this-connection as false
                        if(!$connection || !$login){
                            return false;
                        } else {
                            // enabling passive mode
                            ftp_pasv( $connection, true );
                            return $connection;
                        }
            break;

            case 'sftp':
                        //decide which ssh type to use
                        switch( $this->ssh_type ){
                            case 'phpseclib':
                                    //inlcude the phpseclib path in the include array and include the ssh2 class
                                    set_include_path($this->phpseclib_path );
                                    if(!include('Net/SSH2.php')){
                                        echo 'Sorry failed to load SSH2 class';
                                        br();
                                    }
                                    if(!include('Net/SFTP.php')){
                                        echo 'Sorry failed to load SFTP class';
                                        br();
                                    }

                                    $connection = new Net_SFTP($this->host, $this->port_number);
                                    $login = $connection->login($this->username, $this->password);
                            break;

                            case 'libssh2':
                                    $connection = ssh2_connect($this->host, $this->port_number);
                                    $login = ssh2_auth_password($connection, 'username', 'secret');
                            break;

                            default:
                                    echo 'No ssh method defined, please define one in: $ftp_sftp->ssh_type';
                                    exit();
                            break;
                        }

                        //if no connection was possible return false and leave $this-connection as false
                        if (!$connection || !$login) {
                            return false;
                        } else {
                            return $connection;
                        }
            break;

            default: echo 'No connection type set cannot choose a method to connect';
            break;
        }
}

//acces the phpseclib errors
public function errors(){
if($this->connection_type == 'sftp' && $this->ssh_type == 'phpseclib'){
        print_r($this->connection->getErrors());
    } else {
        echo 'no error logs available';
    }
}

//function used by this class to check certain values are set
public function connection_check(){
    if( $this->connection === false){
        echo 'Sorry there seems to be a connection problem please try again';
        br();
    }

    if( $this->connection_type === false){
        echo 'Sorry there seems to be a no connection type set';
    }

    if( $this->connection === false || $this->connection_type === false ){
        exit();
    }
}

//transfers a file to the connected server
public function put($targetLocationToSendTo, $existingLocationToSendFrom){

    //check the connection
    $this->connection_check();

    switch( $this->connection_type )
        {
            case 'ftp':
                        //ftp_put the file across
                        $put = ftp_put( $this->connection, $targetLocationToSendTo, $existingLocationToSendFrom, FTP_BINARY);
            break;

            case 'sftp':
                        //decide which ssh type to use
                        switch( $this->ssh_type ){
                            case 'phpseclib':
                                    $put = $this->connection->put( $targetLocationToSendTo, $existingLocationToSendFrom, NET_SFTP_LOCAL_FILE );
                            break;

                            case 'libssh2':
                                    $put = ssh2_scp_send($this->connection, $targetLocationToSendTo, $existingLocationToSendFrom, 0755);
                            break;
                        }
            break;
        }

    return $put;
}

//list the contents of a remote directory
public function dir_list( $dirToList ){

    //check the connection
    $this->connection_check();

    //run appropriate list
    switch( $this->connection_type )
        {
            case 'ftp':
                        $list = $this->connection = ftp_nlist($this->connection, $dirToList);
            break;

            case 'sftp':
                        //decide which ssh type to use
                        switch( $this->ssh_type ){
                            case 'phpseclib':
                                    $list = $this->connection->nlist( $dirToList );
                            break;

                            case 'libssh2':
                                    echo 'Sorry there is no support for nlist with libssh2, however this link has a possible answer: http://randomdrake.com/2012/02/08/listing-and-downloading-files-over-sftp-with-php-and-ssh2/';
                            break;
                        }
            break;
        }

    return $list;
}

//get the timestamp of the file on another server
public function remote_filemtime( $pathToFile ){

    //check the connection
    $this->connection_check();

    //run appropriate list
    switch( $this->connection_type )
        {
            case 'ftp':
                        $timeStamp = ftp_mdtm($this->connection, $pathToFile);
            break;

            case 'sftp':
                        //decide which ssh type to use
                        switch( $this->ssh_type ){
                            case 'phpseclib':
                                    $statinfo = $this->connection->stat( $pathToFile );
                            break;

                            case 'libssh2':
                                    $statinfo = ssh2_sftp_stat($this->connection, $pathToFile);
                            break;
                        }

                        if($statinfo['mtime']){
                            $timeStamp = $statinfo['mtime'];
                        } else {
                            $timeStamp = false;
                        }
            break;
        }

    return $timeStamp;
}

//make a directory on the remote server
public function make_dir( $dirToMake ){
    //check the connection
    $this->connection_check();

    //run appropriate list
    switch( $this->connection_type )
        {
            case 'ftp':
                        $dir_made = ftp_mkdir($this->connection, $dirToMake);
            break;

            case 'sftp':
                        //decide which ssh type to use
                        switch( $this->ssh_type ){
                            case 'phpseclib':
                                    $statinfo = $this->connection->mkdir( $dirToMake );
                            break;

                            case 'libssh2':
                                    $statinfo = ssh2_sftp_mkdir($this->connection, $dirToMake, 0755);
                            break;
                        }
            break;
        }

    return $dir_made;
}

//change directory
public function change_dir( $dirToMoveTo ){
    //check the connection
    $this->connection_check();

    //run appropriate list
    switch( $this->connection_type )
        {
            case 'ftp': $chdir = ftp_chdir($this->connection, $dirToMoveTo );
            break;

            case 'sftp':
                        //decide which ssh type to use
                        switch( $this->ssh_type ){
                            case 'phpseclib':
                                    $chdir = $this->connection->chdir( $dirToMoveTo );
                            break;

                            case 'libssh2':
                                    echo 'Sorry this feature does exist yet for when using libssh2 with the ftp_sftp class';
                                    exit();
                            break;
                        }
            break;
        }

    return $chdir;
}

//curent directory we are looking in
public function pwd(){

    //check the connection
    $this->connection_check();

    //run appropriate list
    switch( $this->connection_type )
        {
            case 'ftp': $pwd = ftp_pwd($this->connection);
            break;

            case 'sftp':
                        //decide which ssh type to use
                        switch( $this->ssh_type ){
                            case 'phpseclib':
                                    $pwd = $this->connection->pwd();
                            break;

                            case 'libssh2':
                                    echo 'Sorry this feature does exist yet for when using libssh2';
                                    exit();
                            break;
                        }
            break;
        }

    return $pwd;
}

//delete file
public function delete_file($fileToDelete){
    //check the connection
    $this->connection_check();

    //run appropriate list
    switch( $this->connection_type )
        {
            case 'ftp': $unlink = ftp_delete($this->connection, $fileToDelete);
            break;

            case 'sftp':
                        //decide which ssh type to use
                        switch( $this->ssh_type ){
                            case 'phpseclib':
                                    $unlink = $this->connection->delete( $fileToDelete );
                            break;

                            case 'libssh2':
                                    $unlink = ssh2_sftp_unlink($this->connection, $fileToDelete);
                            break;
                        }
            break;
        }

    return $unlink;
}   }//end of class

```

Using the class:

```
$ftp_sftp = new ftp_sftp( '92.21.627.163', 'ftpuser', 'yourpassword', '', 'ftp', '21' );
echo $ftp_sftp->pwd();

```

I am having a little trouble getting the phpseclib to connect on my win7 machine using easyPHP and have started a Q.. if anyone has any ideas i would be very grateful...
[Cannot get phpseclib to connect - error 10060](https://stackoverflow.com/questions/14326406/cannot-get-phpseclib-to-connect-error-10060)