PHP methods in query language

Kirby 3 Questions 🤔
1

Is it possible to use PHP methods in query language?

Following with date method not working:

query: kirby.users.filterBy("createdAt", ">=", date("Y-m-d", strtotime("-1 day"))).count

Works with manual data:

query: kirby.users.filterBy("createdAt", ">=", "2019-08-01").count

Otherwise I will create a new users method.