mysqli_real_connect(): (HY000/2002): No such file or directory after mariadb installe code example

Example: mysqli_real_connect(): (hy000/2002): no such file or directory

Locate config.sample.inc.php

Change

$cfg['Servers'][$i]['host'] = 'localhost';
into

$cfg['Servers'][$i]['host'] = '127.0.0.1';
Save.

Then rename the file and remove sample from the name.