In one project, which I did, "suddenly" stopped working authorization in VK. A friend asked to see what was the matter. It was found that in approximately this fragment instead of a point began to appear a comma:
$params = [
'access_token' => 'xxxxx',
'v' => 5.67
$url = 'https://api.vk.com/method/users.get?' . http_build_query($params);
It turns out the link
- with the comma. VK says it is API version 5.0 and everything works as expected.
Hastily he corrected, taking the version in quotes as a string it passes unchanged.
But osadochek remained: how and why "suddenly" began to appear comma?