do search in two site and show the result in first site
I have two sites the first one is a product search page and the second site is post blog page I want to change the first search to all search field that searches in both site and show the result in the first site.
first WordPress site search field.
second WordPress site search field.
how should I add field search in first site and it show both site result?
Both sites powered by WordPress.
I hope someone helps me!