facebook graph api - post large image - php

Question

I finally got facebooks graph api to post messages on my fan PAGE as page
How do i get it to post large images as a post, not as a link?
'source' => $photo seems to create a thumbnail
this is what i have so far
<?php
$page_id = 'YOUR-PAGE-ID';
$message = "I'm a Page!";
$photo = "http://www.urlToMyImage.com/pic.jpg";
require '../src/facebook.php';
// Create our Application instance (replace this with your appId and secret).
$facebook = new Facebook(array(
'appId' => 'YOUR-APP-ID',
'secret' => 'YOUR-SECRET-ID',
));
$user = $facebook->getUser();
if ($user) {
try {
$page_info = $facebook->api("/$page_id/?fields=access_token");
if( !empty($page_info['access_token']) ) {
$facebook->setFileUploadSupport(true); // very important
$args = array(
'access_token' => $page_info['access_token'],
'message' => $message,
'source' => $photo
);
$post_id = $facebook->api("/$page_id/feed","post",$args);
}
} catch (FacebookApiException $e) {
error_log($e);
$user = null;
}
}
// Login or logout url will be needed depending on current user state.
if ($user) {
$logoutUrl = $facebook->getLogoutUrl(array( 'next' => 'http://mydomain.com/logout_page.php' ));
} else {
$loginUrl = $facebook->getLoginUrl(array('scope'=>'manage_pages,publish_stream'));
}
?>

Answer 1

The problem here is that you are in actual fact not posting a photo. What you are doing is posting a link to that photo so what you see is indeed a thumbnail preview image that Facebook retrieved from that URL.
What you'll want to do is provide a full path to a file on your server prefixed with the # symbol. The topic has been discussed on the site quite a bit so I'll just point you in the direction of a canonical post dealing with uploading of images to Facebook with the PHP SDK
Upload Photo To Album with Facebook's Graph API
The code looks like this -
$facebook->setFileUploadSupport(true);
$params = array('message' => 'Photo Message');
$params['image'] = '#' . realpath($FILE_PATH);
$data = $facebook->api('/me/photos', 'post', $params);