Curl vk

$mail = "login"; //e-mail или логин от контакта
$pass = "pass"; //пароль от контакта
$url = 'http://vk.com/ид';
 
$link = "http://login.vk.com/?act=login&email=$mail&pass=$pass";
$uagent = "Opera/9.80 (Windows NT 6.1; WOW64) Presto/2.12.388 Version/12.14";
$cookie = null;
$post = NULL;
 
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL,$link);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_FAILONERROR, 1); // Fail on errors
curl_setopt($ch, CURLOPT_USERAGENT, $uagent); 
curl_setopt($ch, CURLOPT_TIMEOUT, 0);
curl_setopt($ch, CURLOPT_HEADER, 1);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 0);
if($cookie !== null)
curl_setopt($ch, CURLOPT_COOKIE, $cookie);
if($post !== null) {
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $post);
}
$otvet = curl_exec($ch);
if ($otvet) {
echo "Вход выполнен<br>";
curl_setopt($ch, CURLOPT_URL, $url); // set url to post to
curl_setopt($ch, CURLOPT_FAILONERROR, 1); // Fail on errors
curl_setopt($ch, CURLOPT_USERAGENT, $uagent); 
curl_setopt($ch, CURLOPT_RETURNTRANSFER,1); // return into a variable
curl_setopt($ch, CURLOPT_TIMEOUT, 15); // times out after 15s
$document = curl_exec($ch);
echo $document;
//echo htmlspecialchars($document);
} else {
echo "error";
}
 
curl_close($ch);