Uploading images using the Vkontakte API

Question

API

The instructions for uploading files via APi https://vk.com/dev/upload_files says that after receiving the address for uploading files, the application must send a POST - a request in which there are file1-file5 fields, they contain the corresponding files. Question: how to send this request, namely, how should it look and what kind of file representation should be in it?

Answer 1

For those who are looking for how to send a POST request with a picture to vk api using php, I did it this way:

$link = $upl_url["response"]["upload_url"];
    $lala = dirname(__FILE__)."/112.jpg";
    $cfile = curl_file_create($lala,'image/jpeg','test_name.jpg');
     
    $curl=curl_init();
      curl_setopt_array($curl, array(
        CURLOPT_RETURNTRANSFER => 1,
        CURLOPT_URL => $link,
        CURLOPT_POST => 1,
        CURLOPT_POSTFIELDS => array("photo" => $cfile)
      ));

Answer 2

Here you can see how it is implemented .

Answer 3

@bumbay file_get_contents($url); How is this function set up?

Answer 4

Here is almost what you need:
www.webengineer.pro/wolfram/17-zagruzka-faylov-na-...
there the script from Wolfram Mathematica is considered in detail.
In conjunction with a php script on the server - it works fine. Perhaps you will be able to implement for the VKontakte API.