API request. How to do?

Question

API

I ask you not to throw tomatoes at me, I'm a noob.
I have a VK bot in php, the message template is
if ($message == 'Message') {
$vk->sendMessage($peer_id, "Message reply");
How can I send an api request instead of a response?
Please help!

Answer 1

And how do you think your response sent through the request differs from the api request that sends the response?
Yes the correct answer is nothing