Posting photo via Facebook graph no longer working - php

Question

I'm trying to post a photo using the php-sdk - all was working for months successfully but all of the sudden no dice.
Other functions are still working with the same code base (ie: posting messages to wall) - its just the posting of photos that broke on my side.
try {
$data = $facebook->api('/me/photos', 'post', $args);
} catch (FacebookApiException $e) {
print_r($e);}
Is dumping:
FacebookApiException Object ( [result:protected] => Array ( [error_code] => 3 [error] => Array ( [message] => No URL set! [type] => CurlException ) ) [message:protected] => No URL set! [string:private] => [code:protected] => 3 [file:protected] => /locationofmy/base_facebook.php [line:protected] => 818 [trace:private] => Array ( [0] => Array [..............]
From the FB php-sdk lines 818:
if ($result === false) {
$e = new FacebookApiException(array(
'error_code' => curl_errno($ch),
'error' => array(
'message' => curl_error($ch),
'type' => 'CurlException',
),
));
curl_close($ch);
throw $e;
}
curl_close($ch);
return $result;
}
This was working for a long time - has something changed on Facebooks side?
EDIT: php-sdk version: 3.1.1
EDIT 2:
$tag = array(
'tag_uid' => 'acct_num',
'x' => 0,
'y' => 0
);
$tags[] = $tag;
$args = array(
'message' => $item_description,
'image' => '#' . realpath($temp_path . $tempFile),
'tags' => $tags,
);

Answer 1

Probably that the file doesnt exist, or the file system can't serve it anymore. Can you confirm "$temp_path . $tempFile" - the error is no URL, usually that means no real path to image. I suspect, that the images are missing and/or your servers filled up and no local images are saving. (Yes, this has happened to me before!)

Answer 2

Try changing the image to source. I believe this should fix your issue.
The Facebook API requires a source field but I did not see anything about an image field.
You may also have to pass the actual file contents instead of the real_path (based on the example). Or, alternatively, pass an external URL (based on my understanding of the documentation).
Source: https://developers.facebook.com/docs/reference/api/photo/
Example: https://developers.facebook.com/blog/post/498/