PHP 7 and 8 are huge leaps forward for the language. Gone are the days of hacking together an entire web application in a single file (although you can technically still do that, if you're feeling retro). Now there are so many fancy new language features that you might find yourself adrift in the sea of changes.
I'd like to introduce some of these new features one at a time, to give them a chance to catch your attention and capture your imagination.
Today's subject: the Null Coalesce operator, a little ditty from PHP 7.0 that