Skip to main content
Software Engineering

You are not logged in. Your edit will be placed in a queue until it is peer reviewed.

We welcome edits that make the post easier to understand and more valuable for readers. Because community members review edits, please try to make the post substantially better than how you found it, for example, by fixing grammar or adding additional resources and hyperlinks.

4
  • 5
    The example you give is not dependency injection in the classical sense. -- It doesn't matter. OO people have objects on the brain, but you're still handing a dependency to something. Commented Nov 13, 2018 at 16:47
  • 1
    When you talk about “in the classical sense”, you are, as @RobertHarvey says, speaking purely in OO terms. In functional programming for example, injecting one function into another (higher order functions) is that paradigm’s classical example of dependency injection. Commented Nov 13, 2018 at 17:11
  • 3
    @RobertHarvey: I guess I was taking too many liberties with "dependency injection." The place people most often think of the term and use the term is in reference to fields on an object being "injected" at the time of object construction, or immediately after in the case of setter injection. Commented Nov 13, 2018 at 19:26
  • @DavidArno: Yes, you are correct. The OP seems to have an object oriented PHP code snippet in the question, so I was answering in that regard only, and not addressing functional programming --- all though with PHP you could ask the same question from the standpoint of functional programming. Commented Nov 13, 2018 at 19:45