vk.com api. How to make requests on the server with a custom token?

Question

PHP

Good afternoon!
The user logs in to VKontakte via oauth, on the server I receive a token according to the documentation for the Authorization Code Flow scheme. The problem is that when I try to execute any vk api method, for example photos.get, I get Error 5. User authorization failed: method is unavailable with server auth. I understand that the error says that this method can only be performed from under the client.
Is it possible to make requests on the server side using a token? Specifically, I need to get the id of the current user and a list of his photos on the server.

Answer 1

You need to do this in the script through which he passes authorization, and write all the results to the database

<?php

    $client_id = '3485070'; // ID приложения
    $client_secret = 'lYjfUZwZmlJJlFIqQFAj'; // Защищённый ключ
    $redirect_uri = 'http://localhost/vk-auth'; // Адрес сайта

    $url = 'http://oauth.vk.com/authorize';

    $params = array(
        'client_id'     => $client_id,
        'redirect_uri'  => $redirect_uri,
        'response_type' => 'code'
    );

    echo $link = '<p><a href="' . $url . '?' . urldecode(http_build_query($params)) . '">Аутентификация через ВКонтакте</a></p>';

if (isset($_GET['code'])) {
    $result = false;
    $params = array(
        'client_id' => $client_id,
        'client_secret' => $client_secret,
        'code' => $_GET['code'],
        'redirect_uri' => $redirect_uri
    );

    $token = json_decode(file_get_contents('https://oauth.vk.com/access_token' . '?' . urldecode(http_build_query($params))), true);

    if (isset($token['access_token'])) {
        $params = array(
            'uids'         => $token['user_id'],
            'fields'       => 'uid,first_name,last_name,screen_name,sex,bdate,photo_big',
            'access_token' => $token['access_token']
        );

        $userInfo = json_decode(file_get_contents('https://api.vk.com/method/users.get' . '?' . urldecode(http_build_query($params))), true);
        if (isset($userInfo['response'][0]['uid'])) {
            $userInfo = $userInfo['response'][0];
            $result = true;
        }
    }

    if ($result) {
        echo "Социальный ID пользователя: " . $userInfo['uid'] . '<br />';
        echo "Имя пользователя: " . $userInfo['first_name'] . '<br />';
        echo "Ссылка на профиль пользователя: " . $userInfo['screen_name'] . '<br />';
        echo "Пол пользователя: " . $userInfo['sex'] . '<br />';
        echo "День Рождения: " . $userInfo['bdate'] . '<br />';
        echo '<img src="' . $userInfo['photo_big'] . '" />'; echo "<br />";
    }
}
?>