How to get Google search results in a specific city from PHP?

Question

Google

Yandex has an XML service that has a wonderful parameter lr , which is responsible for specifying which area the request refers to.
Is there something similar on Google?
In Google, according to their WebSearch API specification, there are parameters that are responsible for the language of the document lr , and for belonging to a specific country gl .
However, as far as I can see, many SEO companies that provide online services that rank keywords also provide the ability to choose which city the query belongs to. I can't understand how?