Arrays are beautiful in PHP. One can map them, reduce them, filter them, foreach them, and use them in generators. Strings, on the other hand, are mere shadows to the Array. One can, uh, input and output Strings, and, when brave, manipulate them. What makes Arrays so awesome and Strings so dull? Iterators.
In this talk, we’ll look at the modest origins of the String and the basics of the Iterator. Then, we’ll look at how we can make the String as awesome as the Array through the use of iterator interfaces.
By the end of this talk, you will know the origins of the PHP String and you will be able to extend your knowledge of iterating through a String to be able to iterate through customized objects.