How to implement individual comments for each post?

Question

In contact with

Good afternoon, there is a site on Yii2 with a catalog of articles. I met on the net, but did not see the manual with the implementation of individual comments on each article using VK Api.
Here, vk.com/dev/Comments gives an ID for the entire site, it’s not rational to go in to generate an id for each entry, you see.
Thank you in advance for your help.

Answer 1

The widget itself determines on which page it is called and separates comments by url

Answer 2

Have you tried reading the documentation beyond the first paragraph? And what does yii, php and mysql have to do with it?
https://vk.com/dev/widget_comments

page_id (string) - internal page ID. Use page_id to place two or more independent widgets on the same page.