Today I’ll look at some iterators: a set of classes in the SPL that implements various iterating patterns: ArrayIterator, AppendIterator, FilterIterator, LimitIterator and NoRewindIterator. Hopefully you’ll get a idea of what these are capable of and that you can get some new ideas for your day-to-day tasks.

Today I will look at the Countable interface, it has a single function that needs to be implemented: count(), by implementing this you can ensure that there is a count() function ready to use on any given class that implements it. The Countable interface is used in other places in the SPL as well: the [...]

In this post I will look at SplObjectStorage: a container that allows to store objects uniquly without the need to compare them one by one.

This is a post looking at the SplSubject

This post will look at the SplFileObject