Installation causes blank page

I’ve tried downgrading to wordpress 4.3.1 but I’m still getting the same bug

This may or not be relevant, but I am using the wordpress container on dockerhub https://hub.docker.com/_/wordpress/

I’ve managed to get an error when I have the master as writeonly and a separate slave as readonly. But I still get a blank page when I set the master as read/write using the default.

Notice: Undefined variable: server in /var/www/html/wp-content/plugins/hyperdb/db.php on line 627

Fatal error: Call to undefined function mysql_error() in /var/www/html/wp-content/plugins/hyperdb/db.php on line 629

nlsun:
Is this PHP 7 by any chance? We’re seeing the same thing.

I actually fixed this for myself. The MySQL extension has been deprecated, so you just need to replace all of those function calls with the MySQLi equivalent within db.php.

This site has all the info mysqli code fixed. Swapped out with db.php plugin from www.ads-software.com and it’s working great!

https://github.com/soulseekah/hyperdb-mysqli/
https://raw.githubusercontent.com/soulseekah/hyperdb-mysqli/master/db.php