<?php
function upload_file($chat_id, $q, $name) {
    $server = json_decode(vk("photos.getMessagesUploadServer", ""), 1);
    $url = $server["response"]["upload_url"];

    if($curl = curl_init()) {
        curl_setopt_array($curl, [
            CURLOPT_URL => $url,
            CURLOPT_SSL_VERIFYPEER => 0,
            CURLOPT_SSL_VERIFYHOST => 0,
            CURLOPT_RETURNTRANSFER => 1,
            CURLOPT_POST => 1,
            CURLOPT_POSTFIELDS => [
                "photo" => "@".$name
            ]
        ]);
        $out = curl_exec($curl);
        curl_close($curl);
    }
    $query = json_decode($out, 1);

    $up = json_decode(vk("photos.saveMessagesPhoto", [
        "server" => $query["server"],
        "photo"  => $query["photo"],
        "hash"   => $query["hash"]
    ]), 1);

    send($chat_id, $q, $up["response"][0]["id"]);
}