Why does the script in VKontakte not work?

Question

PHP

The repost script on the wall from the VKontakte group does not work, what is the reason?
The code itself:

$result = file_get_contents("https://api.vk.com/method/wall.repost?object=wall-57072999_513&access_token=5692f25f01697971234548232c894573c83ac46cc23a695a8a4bb7ce2029cee560be467c0570280605045");

I paste the script into the browser and it shows this:

{"error":{"error_code":8,"error_msg":"Invalid request: v (version) is required","request_params":[{"key":"oauth","value":"1"},{"key":"method","value":"wall.repost"},{"key":"object","value":"wall-57072999_513"}]}}