PHP

Eiltesir

Hello everyone,

My PHP Manager is currently running version 8.2, and I am thinking about upgrading it to 8.4. However, I am not sure if osTicket supports it yet.

Can anyone tell me if the latest osTicket version is compatible with PHP 8.4?

Thanks in advance!

KevinTheJedi

Eiltesir

You can always check supported versions on the website and github. We release our Prerequisites with each version release which includes required PHP versions.

References

Cheers.

Eiltesir

Hey Jedi,

Thank you for replying. I updated it to 8.4, which is recommended, but now I get a 500 internal error. Should I change something in the ini file as well?

KevinTheJedi

Eiltesir

500 can mean anything. Check all logs (general server logs, webserver error logs, PHP error logs, MySQL/MariaDB error logs, osTicket System Logs, Browser Console logs, etc.) for related errors.

Cheers.

KevinTheJedi

Eiltesir

Also did you make sure your exact version supports 8.4? What version of osTicket are you running?

Cheers.

Eiltesir

Dear Jedi,

Thank you so much for answering. I found the solution.
The HTTP 500 error was not caused by osTicket itself, as the latest versions natively support PHP 8.4. Instead, it was a Windows environment issue: PHP 8.4 is compiled with a newer Visual Studio build (14.44) than older PHP versions.

If your server runs an outdated VCRUNTIME140.dll (e.g., version 14.28), PHP will crash instantly on the command line (php.exe -v) with a compatibility warning, causing IIS to throw a generic 500 error.

How to fix it:

Download and install the latest Visual C++ Redistributable for Visual Studio 2015–2022 (x64) directly from Microsoft.
Run an iisreset via command prompt.

After updating the environment, osTicket runs perfectly fine on PHP 8.4. Hope this helps anyone else running into the same roadblock!

Regards