OK. I don't see that particular error in the browser window. I was looking for this in PHP logs and didn't see anything at all. I'm able to log on. I do have other warnings, about not having the curl extension provisioned, and about not having a tmp directory provisioned at /htdocs/phpMyAdmin/tmp. That's fine, I haven't provisioned these.
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Correct your MariaDB socket. Above, you posted that your /etc/my.cnf file contains:
Code:
socket=/var/run/mysql/mysql.sock
That's outside the /var/www chroot where php-fpm and httpd both run. Correct your /etc/my.cnf -- review the pkg-readme excerpt I posted above, and note the socket= value is different. After correcting the configuration file, restart your mysqld daemon with
# rcctl restart mysqld. See if you are then able to log in with the user and password you created.