Хорошо, это работает:
<?php
define('VK_API_ID_TEST', 'XXX');
define('VK_AUTH_SECRET_TEST', 'YYY');
$args = array(
'api_id' => $_GET['api_id'],
'format' => 'json',
'method' => 'getProfiles',
'uids' => $_GET['viewer_id'],
'v' => '3.0',
);
$req = $_GET['api_url'] . '?sig=' . calc_sig($args);
foreach ($args as $key => $val)
$req .= "&$key=$val";
$page = file_get_contents($req);
$data = json_decode($page, true);
header('Content-Type: text/plain');
print("\n\n _GET:");
print_r($_GET);
print("\n\n req: " . $req);
print("\n\n page: " . $page);
print("\n\n data:");
print_r($data);
print("\n\n city: " . $data['response'][0]['name']);
function calc_sig($arr) {
$kv = array();
foreach ($arr as $key => $val) {
if ($key != 'sig')
$kv[] = "$key=$val";
}
sort($kv);
$str = join('', $kv) . VK_AUTH_SECRET_TEST;
print("\n\n str: " . $str);
return md5($str);
}
?>