For a while we have had our Wiki in debug mode to troubleshoot an issue. The file has grown to quite a size :-), but 86% (36859212 out of 42502333 lines) of the log are all the same error message:
utf8_strtolower() is deprecated. It was called from array_map() in /data/dokuwiki/inc/auth.php:633 dokuwiki\Utf8\PhpString::strtolower() should be used instead!
Is this a DW problem or a problem of our PHP version/configuration? Can/should this be fixed?
We are using PHP 7.4.20 and as far as we can remember, we haven't configured anything other than the default settings.