[SOLVED] [php 8] [fieldtype "file"] error: implode(): Argument #2 ($array) must be of type ?array, string given

Hi there,

I'm updating a site to php 8, and get this error:

implode(): Argument #2 ($array) must be of type ?array, string given
and a blank screen, even with debug on and error reporting max.

The error arises when I do

~ FlexicontentFields::getFieldDisplay($item, 'downloads');
where
$item
is a correct item object (other fields work)
and
'downloads'
is the correct field name/alias

What can I do to make that go away?
Thanks!

[edit]
php 8.1.10
Joomla! 3.10.11
FC 4.1.3

Solved it, sorry to post too early:

If you come across this error, too, check for file overrides in your custom template. In my case it was
C:\xampp\htdocs\[...]\templates\[...]\html\flexicontent_fields\file

in there I had a modified copy of FC's core file that contained old php with
3x
implode( array, seperator )

above param order is now obsolete, switching the param order in each implode() will fix the error.

 

thanks for return strange to use override in template folder ...