I have no possibility to estimate your knowledge level. But i can expect that you:
- knows the XAMPP version you are using.
You downloaded this, you installed this.
There are even multiple ways to obtain this information, like in the control panel log, the readme files, etc.
This is doable even for an emergency services worker.
- knows the name and version number of the Ticket software you want to install
How should we, if ever, be able to solve a problem for a foreign software we don't have any information from?
You did get this software from somewhere or someone. So you are the only person to be able to obtain any information about this.
It doesn't matter i am a moderator or administrator here. I am willing to help you with your problem, but i have no possibility to help you out without these base information.
I told you that the problem is that the PHP version which is included in the XAMPP version you have installed does not provide the functions to run your software.
A possible solution could be to install an older version of XAMPP. But which version exactly depends on the requirements of the software, so we need to know the name and version number of it.
Another possible solution could be a more up to date version of software of available. But again without any information about this software we are unable to search for you.
I don't know how i can help you out. Maybe you are able to ask a person around you providing this minimum information for you so we can start to try to solve your problem.