I have a question and would like some tips to update a page through another page.
Example:
On page "A" I have a list of products and a link to page "B"; The "B" page will open in a new tab and have a form to include new products.
I would like to update the "A" page by adding each product (on page "B").
I could create a script for the page to be updated at a predefined interval, but this would increase the server load.
I found a similar example: Diego Doná example , but page A passes commands to page B. I want to do the reverse.