# ssh2_auth_none

(PECL ssh2 >= 0.9.0)

ssh2_auth_none — Authenticate as "none"

### Descripción

ssh2_auth_none(resource `$session`, string `$username`): mixed

Attempt "none" authentication which usually will (and should) fail. As part of the failure, this function will return an array of accepted authentication methods.

### Parámetros

`session`

  An SSH connection link identifier, obtained from a call to ssh2_connect().

`username`

  Remote user name.

### Valores devueltos

Returns `true` if the server does accept "none" as an authentication method, or an array of accepted authentication methods on failure.

### Ejemplos

Ejemplo #1 Retrieving a list of authentication methods

`<?php
$connection = ssh2_connect('shell.example.com', 22);
$auth_methods = ssh2_auth_none($connection, 'user');
if (in_array('password', $auth_methods)) {
echo "Server supports password based authentication\n";
}
?>`