KirillShakhov

public function uploadFile($url, $path)
    {
        $ch = curl_init($url);
        curl_setopt($ch, CURLOPT_HEADER, false);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
        curl_setopt($ch, CURLOPT_POST, true);

        if (class_exists('\CURLFile')) {
            curl_setopt($ch, CURLOPT_POSTFIELDS, ['file1' => new \CURLFile($path)]);
        } else {
            curl_setopt($ch, CURLOPT_POSTFIELDS, ['file1' => "@$path"]);
        }

        $data = curl_exec($ch);
        curl_close($ch);
        return json_decode($data, true);
    }