Over the next several months I will be upgrading our PHP version on all the web servers before support is lost completely due to our older versions.
Many web based program and even web pages may rely on PHP and if they have not been upgraded in a long while it could break your website or web based program. So this is your warning to upgrade any old PHP code you have on your website before this happens.
I will first take us to PHP version 5.6 and eventually up into version 7.2 or 7.3 which is the latest version. I like to stay just a little behind the development curve, so I'll likely stop at 7.2.
If you have any questions or concerns about this feel free to send me an email or call.