How to use constructs like (array($class, 'method'), array(..) in function parameters?

Question

PHP

I began to often see that the following constructions are passed as function parameters:

myFunc(array($class,'_method'), array($class, 'two_method), ... );

How to use it and how does it work?
I absolutely don’t understand, and how to formulate a question to Google too, throw in some literature, please)

Answer 1

looks like a callback
I think this information will be useful to you: call_user_func