Collections methods are added to the Reader class to improve DX as well as the ability to format the records prior to accessing them using the same technique already present on the Writer class.
Sometimes a documentation page provides more in depth into a topic than an actual blog post. I find the documentation around #IDN feature in league/uri to be just that. Informative, to the point with best practices rolled into one #php#uri #thephpleague https://uri.thephpleague.com/interfaces/7.0/idn/