Help Test PHP 8.0 Compatibility in v1.5.0-RC1

[iSimsi]

For Classic Seo I have found a temporal workaround.

Classic SEO is not compatible with PHP 8

I was able to solve the problem as follows: In /wp-content/plugins/classicpress-seo/includes/helpers/class-param.php are four methods in which $filter = FILTER_DEFAULT, $flag = ‘’ is defned. A 0 must be used, not an empty string. https://www.php.net/manual/en/function.filter-var.php After I made this change I could activate and deactivate the plugin and activate it again. All the previous tests worked. Do more tests. Hope that tomorrow I can use PHP 8 on the productive system.