implode(): Argument #2 ($array) must be of type ?array, bool given

[spiros]

I started getting this in searches after 2.0.19 and php 8 change (I use Sphinx)

For example, a search for the word φιλοσοφεῖν
https://www.translatum.gr/forum/index.php?action=search

[SpacePhoenix]

Are you able to get the file name and line where the error occurs from PHP's error logs?

My gut feeling is that the array concerned gets generated from a result set from a database query and the query has failed so false got returned instead of a result set

[spiros]

Could not find anything relevant in php error logs.