phpseclib\Net\SSH2::login PHP Метод

    function login($username)
    {
        $args = func_get_args();
        return call_user_func_array(array(&$this, '_login'), $args);
    }

 /**
  * @param string $commandName
  * @param string $target
  * @param array  $targetConfig
  * @param array  $inputCommand
  * @param array  $userHomeDir
  * @return string
  */
 public function executeCommand($commandName, $target, $targetConfig, $inputCommand, $userHomeDir)
 {
     $remoteCommand = str_replace([sprintf('\'%s\'', $commandName), sprintf('target=\'%s\'', $target)], [$commandName, sprintf('root=%s', $targetConfig['root'])], $inputCommand);
     $remoteCommand = sprintf('%s %s', $targetConfig['console'], $remoteCommand);
     $key = null;
     if (array_key_exists('password', $targetConfig)) {
         $key = $targetConfig['password'];
     }
     if (!$key) {
         $key = new RSA();
         if (array_key_exists('passphrase', $targetConfig['keys'])) {
             $passphrase = $targetConfig['keys']['passphrase'];
             $passphrase = realpath(preg_replace('/~/', $userHomeDir, $passphrase, 1));
             $key->setPassword(trim(file_get_contents($passphrase)));
         }
         $private = $targetConfig['keys']['private'];
         $private = realpath(preg_replace('/~/', $userHomeDir, $private, 1));
         if (!$key->loadKey(trim(file_get_contents($private)))) {
             return $this->getTranslator()->trans('commands.site.debug.messages.private-key');
         }
     }
     $ssh = new SSH2($targetConfig['host'], $targetConfig['port']);
     if (!$ssh->login($targetConfig['user'], $key)) {
         return sprintf('%s - %s', $ssh->getExitStatus(), $ssh->getErrors());
     } else {
         return $ssh->exec($remoteCommand);
     }
 }