How to send using the messages.send method?

Question

PHP

I make notifications through VK. On behalf of the community to the user. By this code

// Уведомления через ВК
            $request = $main->requestVkAPI('messages.send', "user_ids={$ownerId}&title={$groupname}&message={$message}&attachment={$attachments}&access_token={$tokengroup}");

The title should contain a message like this:

$groupname = urlencode('Новое сообщение в группе:');

And you need to specify the name of this group after "New message in the group".
I take the name of the group again from the API

$groupInfo = $main->requestVkAPI('groups.getById', "group_ids={$groupId}&fields=name,screen_name,description,photo_100&access_token={$tokenadmin}");

$template->templateSetVar('group_name', htmlspecialchars($groupInfo[0]['name']));

That is, this code I can not get stuck here. An error occurs. Help!! I did it like this, it doesn't look right:$groupInfo[0]['name']
$groupname = urlencode($groupInfo[0]['name']);

Answer 1

var_dump($groupInfo);
And look what you have there

Answer 2

in api vk it’s impossible to write to the user until he himself writes the first one.