Facebook PHP upload file from memory - php

Question

I'm reading an image from my S3 bucket in AWS and want to upload it to Facebook.
This is the reading function:
/**
* Get a file from the s3 storage
*/
private function uploadPicture() {
$picture = new FacebookPicture();
$file = $this->s3Manager->getFile($this->subEndPoint,$this->verb);
$picture->pictureContent = $file["Body"];
$facebookAlbum = new FacebookAlbum();
$facebookAlbum->album = new Album();
$facebookAlbum->album->facebookAccessToken = "myAccessToken";
$facebookAlbum->id = "myAlbumId";
$facebookManager = new FacebookManager();
$facebookManager->uploadPicture($facebookAlbum,$picture);
}
This is the uploading to Facebook function
/**
* #param $facebookAlbum FacebookAlbum the album to upload the picture to
* #param $picture FacebookPicture the picture to upload
*/
public function uploadPicture($facebookAlbum,$picture)
{
$this->facebook->setAccessToken($facebookAlbum->album->facebookAccessToken);
$this->facebook->setFileUploadSupport(true);
$args = array();
$args["message"] = $picture->description;
$args["source"] = "#" . $picture->pictureContent;
$data = $this->facebook->api('/'. $facebookAlbum->id . '/photos', 'post', $args);
var_dump($data);
}
I keep getting :
curl_setopt_array(): The usage of the #filename API for file uploading is deprecated. Please use the CURLFile class instead in <b>acebook-php-sdk-master/src/base_facebook.php</b> on line <b>1005</b><br />
I think that the problem is that the image content is saved in the memory.
How can I use the variable in my memory in order to post it to Facebook ?

Answer 1

#filename has been deprecated in PHP >= 5.5.0 as stated here under the CURLOPT_POSTFIELDS description , So thats the reason why you got the error .
you have your answer here at this stack overflow thread, where different solutions are discussed . Also here is a snippet from RFC for the code.
Currently, cURL file uploading is done as:
curl_setopt($curl_handle, CURLOPT_POST, 1);
$args['file'] = '#/path/to/file';
curl_setopt($curl_handle, CURLOPT_POSTFIELDS, $args);
This API is both invonvenient and insecure, it is impossible to send
data starting with '#' to the POST, and any user data that is being
re-sent via cURL need to be sanitized so that the data value does not
start with #. In general, in-bound signalling usually vulnerable to
all sorts of injections and better not done in this way.
Instead of using the above method, the following should be used to
upload files with CURLOPT_POSTFIELDS:
curl_setopt($curl_handle, CURLOPT_POST, 1);
$args['file'] = new
CurlFile('filename.png', 'image/png'); curl_setopt($curl_handle,
CURLOPT_POSTFIELDS, $args);