private function getSFTP() {
        if (null === $this->sftp) {
            $this->sftp = ssh2_sftp($this->getConnection());
        }
        return $this->sftp;
    }
private function getSFTP() {
        if (null === $this->sftp) {
            $this->sftp = ssh2_sftp($this->getConnection());
        }
        return $this->sftp;
    }
private function getSFTP ( ) { if ( null === $ this -> sftp ) { $ this -> sftp = ssh2_sftp ( $ this -> getConnection ( ) ) ; } return $ this -> sftp ; }
Get the SFTP resource.

@return mixed Returns the SFTP resource.
Get the SFTP resource .