I upgrade from PHP 7.4 to PHP 8.0 (I use OJS 3.3.0.6). When I upload any file, the log file shows this message:
PHP Fatal error: Uncaught Error: Call to undefined function fgetss() lib/pkp/classes/search/SearchHTMLParser.inc.php
The screen do not do anything, but when I refresh the page the file is uploaded.
I searched for a solution, and the problem it is that function fgetss() is deprecated on PHP 8.0. Is there any solution for this? I couldn’t downgrade the PHP version because of a server standard of my institution.