users.get

$args = array();
$args['user_ids'] = "3306171";
$args['fields'] = "first_name, last_name, sex";

$con_mas = users_get($args);

function users_get($args)
{
	$return_mas = array();
	
	$args_str = getArgsStr($args, "user_ids");
	
	$postvars = "user_ids=" . $args['user_ids'] . $args_str;
	
	$ch = curl_init();	
	curl_setopt($ch, CURLOPT_URL, "https://api.vk.com/method/users.get");
	curl_setopt( $ch, CURLOPT_RETURNTRANSFER, true );
	curl_setopt( $ch, CURLOPT_SSL_VERIFYHOST, false );
	curl_setopt( $ch, CURLOPT_SSL_VERIFYPEER, 0 );
	curl_setopt($ch, CURLOPT_POSTFIELDS, $postvars);
	$con = curl_exec($ch);	
	curl_close($ch);

	$return_mas = json_decode($con, true);	
	
	return $return_mas;
}

function getArgsStr($args, $exc)
{
	$args_str = "";
	
	$keys_args = array_keys($args);
	
	for($k = 0; $k < count($keys_args); $k++)
	{
		if($keys_args[$k] != $exc)
			$args_str .= "&" . $keys_args[$k] . "=" . $args[$keys_args[$k]];
	}
	
	return $args_str;
}