Create a post with Ning PHP API

Hi,

Did anyone achieve blog post creation using Ning PHP API?

With the folowing PHP code:

try {
$args = array("author"=> "39azntkcdxn3r");
$result = NingApi::instance()->user->fetch($args);
print_r($result["success"]);

$values = array (
"title" => "Registro de peso",
"publishStatus" => "publish",
/*"publishTime" => "now",*/
"publishTime" => "2012-07-03T00:00:00.000Z",
"description" => "my first blog post",
"visibility" => "me",
"approved" => "true");

$result = NingApi::instance()->blogPost->create($values);

print_r($result);

}
catch (Exception $e)
{
print_r($e);
}

I get the following output:

1NingException Object
(
    [httpStatus:NingException:private] =>
    [ningCode:NingException:private] =>
    [ningSubcode:NingException:private] =>
    [ningTrace:NingException:private] =>
    [message:protected] =>
    [string:Exception:private] =>
    [code:protected] => 0
    [file:protected] => /var/www/redemae/testeswidgets/public_html/ningapi/NingException.php
    [line:protected] => 56
    [trace:Exception:private] => Array
        (
            [0] => Array
                (
                    [file] => /var/www/redemae/testeswidgets/public_html/ningapi/NingApi.php
                    [line] => 233
                    [function] => generate
                    [class] => NingException
                    [type] => ::
                    [args] => Array
                        (
                            [0] =>
                        )

)

[1] => Array
                (
                    [file] => /var/www/redemae/testeswidgets/public_html/ningapi/NingApi.php
                    [line] => 240
                    [function] => call
                    [class] => NingApi
                    [type] => ->
                    [args] => Array
                        (
                            [0] => BlogPost
                            [1] => POST
                            [2] => Array
                                (
                                    [title] => Registro de peso
                                    [publishStatus] => publish
                                    [publishTime] => 2012-07-03T00:00:00.000Z
                                    [description] => my first blog post
                                    [visibility] => me
                                    [approved] => true
                                )

[3] =>
[4] =>
)

)

[2] => Array
                (
                    [file] => /var/www/redemae/testeswidgets/public_html/ningapi/NingObject.php
                    [line] => 46
                    [function] => post
                    [class] => NingApi
                    [type] => ->
                    [args] => Array
                        (
                            [0] => BlogPost
                            [1] => Array
                                (
                                    [title] => Registro de peso
                                    [publishStatus] => publish
                                    [publishTime] => 2012-07-03T00:00:00.000Z
                                    [description] => my first blog post
                                    [visibility] => me
                                    [approved] => true
                                )

)

[3] => Array
                (
                    [file] => /var/www/redemae/testeswidgets/public_html/ningapi/objects/NingBlogPost.php
                    [line] => 21
                    [function] => create
                    [class] => NingObject
                    [type] => ->
                    [args] => Array
                        (
                            [0] => Array
                                (
                                    [title] => Registro de peso
                                    [publishStatus] => publish
                                    [publishTime] => 2012-07-03T00:00:00.000Z
                                    [description] => my first blog post
                                    [visibility] => me
                                    [approved] => true
                                )

)

[4] => Array
                (
                    [file] => /var/www/redemae/testeswidgets/public_html/createBlogPost.php
                    [line] => 18
                    [function] => create
                    [class] => NingBlogPost
                    [type] => ->
                    [args] => Array
                        (
                            [0] => Array
                                (
                                    [title] => Registro de peso
                                    [publishStatus] => publish
                                    [publishTime] => 2012-07-03T00:00:00.000Z
                                    [description] => my first blog post
                                    [visibility] => me
                                    [approved] => true
                                )