What is the difference between a date mapper and a repository?

Question

PHP

They seem to be doing the same thing. Or is the mapper a mixture of a repository and a factory?

Answer 1

The Data Mapper is only responsible for the relationship between a table row and an object in memory.
Repository is responsible for fetching objects from the database. That is more of a search. Well or not from a DB. It's just a thing that can return a collection of objects from somewhere.

Answer 2

design-pattern.ru/patterns/repository.html
frankly, it's garbage, not a pattern. type syntactic sugar + a collection of objects
I'm afraid, except for the author, no one will give an answer to this question. this is a very special case of a very vague pattern.

Answer 3

If it's quite simple, then the
Repository is a repository of information (DB, files, ...)
DataMapper is the one who knows how to translate this information into objects.