How To Upload Photo to Facebook ? (Uncaught OAuthException: (#324) Requires upload file thrown )

[the.rev...@gmail.com]

I follow this  http://stackoverflow.com/questions/4509326/upload-images-to-a-specific-facebook-album/4541400#4541400 and customize the code to meet the Hybridauth standard. Below is my code 

$post_data = array(

    'name' => "My Test Album",

    'description' => "My Test Album Desc"

);

$data['album'] = $facebook->api()->api("/me/albums", 'post', $post_data);

$file = "http://hargateman.com/htdata/badges/fans%20twitter.png";

$post_data = array(

    "message" => "My photo caption",

    "source" => '@' . realpath($file)

);

$album_id = $data['album']['id'];

$data['photo'] = $facebook->api()->api("/$album_id/photos", 'post', $post_data);

var_dump($data);

The album is successfully created, but the photo failed to be uploaded. And always show error like below:

Uncaught OAuthException: (#324) Requires upload file thrown 

Could you tell me what's wrong with my code ? Thanks :-)

[the.rev...@gmail.com]

Good evening everybody,

any idea ? :-)

[Miled]

you should enable file upload first :

$facebook->api()->setFileUploadSupport(true); 

also, I believe the image should exist on your server, so it wont work with urls

https://developers.facebook.com/docs/reference/php/facebook-setFileUploadSupport/

[the.rev...@gmail.com]

I've tried that, but Uncaught CurlException: 26: failed creating formpost data thrown  is raised