Just updated site to version 4.7 and it recommended I update to PHP 8.0 from PHP Version 7.4.29 that is currently running. when I switch it to PHP 8.0 the forum fails to load.

UnityHQ Community Forum 

is the site. When I check for errors in the logs nothing shows up. Site comes back online when I revert it back to version 7.4.29. 

Anyone have any ideas as to what could be the issue? 

Check all 3rd party items. Its very likely one of those has not yet been updated to be compatible with PHP 8

Disabled 3rd party items and set it to 8.0 again and I get this now. 

I get this when trying to access the admin panel after switching it with the 3rd party stuff off. 

 

Please check the requirement checker, as it looks like you may actually be missing the mysqli functions

https://invisioncommunity.com/files/file/7046-invision-community-requirements-checker/

Where would I get the colocation converter?

 

27 minutes ago, eliteone said:

That specific issue would indicate you're missing the mysqli extension for PHP.

As mentioned by my colleague, please ensure everything is installed on your PHP that is required by using this file: https://invisioncommunity.com/files/file/7046-invision-community-requirements-checker/

 

Ran the checker as told. This is the result. Not sure why some of the database collocation is on the wrong one. Tried to get the converter from the link but it's not a valid link.

Thing is this site has been current and working fine until I ran the 4.7 upgrade. I then tried to switch the PHP per the recommendation.

You ran the requirements checker on your PHP 7.4 which, as you stated, is working. You would need to run it on the PHP version you're attempting to upgrade to which is not working.

To fix the collation issue, you would need to run the converter as mentioned. 

Was able to alter colocation via phpmyadmin. 

I'll switch it over and see how it does. 

Good luck in getting the issue resolved there

Update: 

I was able to get it working once I fixed the colocation issue. 

All good now 🙂 

Glad you were able to resolve it. 🙂 

Excellent! Glad you're all set.