phpMyAdmin errors (count, blowfish, etc.) after php7.2 upgrade on Ubuntu 16

Question

phpMyAdmin errors after php7.2 upgrade

After upgrading to php7.2 on Ubuntu 16.04 LTS, phpMyAdmin shows annoying popup warnings when I view tables:

Answer 1

Your other option to fix the errors is to temporarily downgrade php to version 7.1, until ubuntu catches up on its version of phpmyadmin. Instructions here. I found this easier, and have no reason to be on the bleeding edge of php anyway.