Php version and web services - Accountability for mismatch in php version should 
Auteur : Gianluigi C.The discrepancy between host provider services and web editor provider need rulement because undeclared at the moment of host services subscription. Sometimes host services also didn't promote PHP upgrade with intention to promote own web editor, but this is unclear in many subscriptions.
The problem could receive a partial solution in comparing the different web pages editing : sometimes the past version override the problem in the meantime.
New acknowledge on standard rules in editing and hosting, need yet more. Version of both software packages must be full compatible without role-games on the players (customers). Reimbursement must be garanteed in case of impossibility to realize the compatibility between the 2-side of a web project (editing and hosting).
Asking anyone to providers for a free solution in case of discrepancy, should be a future passage before else more.
Hello. Perhaps the hosting, that Incomedia offers with the program, can solve this problem.
I understand your frustration, sometimes you need more / other stuff that is just not provided by X5 and you try to solve it with additional tools.
However, if you try to work on one website with 2 different web editors, that calls for trouble and it is not in Inco's responsibility to provide full compatibility.
If you want to use own code or code from a different generator you might find that doesn't work with most web editor programs as they use their framework and you're pretty much bound to that. Years ago I tried myself to include some stuff I did with bootstrap and found this was very difficult. I had to learn "the hard way" how to tweak things in X5 (mostly programming custom code by hand and no other tools or frameworks).
Bottom line: X5 is too much a full fledged tool to allow use of too many external tools in its generated code.
As you talk about PHP versions in your post I don't see that as a problem by Inco too. The minimum versions that X5 requires are not over the top.
I'd rather question the quality of the provider if they don't offer PHP versions that are up-to-date. PHP 7.4 was released 2 years ago, PHP 8 one year ago.
If the provider offers modern versions it is the webmasters job to switch to a more modern version at latest when you start to use a new X5 version that requires a more up to date PHP version. Usually this shouldn't be more than a few clicks in the control panel at your provider. If it is not I'd question myself if that is a decent provider.
Inco now offers hostig too (what I don't use myself as I have quite a few projects, not only X5 stuff, on my chosen hosting for many years now with outstanding support at a good price).