This package can manage collections of values using array iterators.

It provides a base collection interface definition with functions to perform several operations with collections like:

- Adding new elements

- Setting and getting element values

- Search for elements by value

- Check if the collection has an element with a given key

- Check if the collection has an element with a given value

- Update the collection with new values

- Return the values of all elements of the collection

- Convert the collection into a PHP array

The package also provides an implementation class that uses PHP arrays to implement the collection interface.