I think PHP7+ has provided a lot in terms of modernization and focus on the OO paradigm. For what it's worth, there are a couple of tools out there that should

I think PHP7+ has provided a lot in terms of modernization and focus on the OO paradigm. For what it's worth, there are a couple of tools out there that should help getting your personal app up and running on PHP7 if you're interested in doing that at some point. Most of the breaking changes I've run into are because deprecated features were removed, which in a lot of cases seemed like strange/wrong syntax to me anyway. I have a legacy app that can't feasibly be updated past 5.6 because it uses a totally undocumented framework that wasn't built in-house. While I could run one of the tools I mentioned, 99% of the framework code probably never runs so there would be a lot of work done for nothing.