PHP 7.1 : elegance of our legacy

I liked the general content of the talk, highlighting the changes, both breaking and life-improving. Presentation style was also pleasant and relaxed.

It probably would've been better to go into a little less detail on each one, especially with regard to finding the right tool to detect incompatibilies, so we wouldn't have had to skip so many slides.

With that in mind, I would love to have a copy of those slides here to have a peek at the parts we missed.

Thank you for the very comprehensive overview of incompatibilities and new features in PHP 7.1. To save some time, you could shorten the treatment of some of the more obscure cases that most developers do not use anyway (octal literals, deprecation of `"$a[-1]"`) in my opinion. Also, it might be useful to show the relevant 'detection methods' for each feature/incompatibility on the bottom/side of the slide where it is discussed.

All in all, this was a really useful talk.