While that is correct, I would definetely prefer using the syntax used in Symfony ArrayCollection[1]: $collection = new ArrayCollection([4,3,2,1]); $collec

While that is correct, I would definetely prefer using the syntax used in Symfony ArrayCollection[1]: $collection = new ArrayCollection([4,3,2,1]); $collection->filter(fn($element) => $element % 2 == 0) ->map(fn($element) => $element+2) ->toArray(); It is pretty much like in JavaScript or C# with Linq, but with less features. But you can implement this yourself using - ArrayInterface, Traversable, Countable, etc. - generators / iterators (yield) It's not that hard. There is also YaLinqo[2] [1] https://www.doctrine-project.org/projects/doctrine-collections/en/1.6/index.html https://www.doctrine-project.org/projects/doctrine-collectio... [2] https://github.com/Athari/YaLinqo https://github.com/Athari/YaLinqo