To set phpmyadmin to auto login, edit config.inc.php
Find
$cfg['Servers'][$i]['auth_type'] = 'cookie';
Replace with
$cfg['Servers'][$i]['auth_type'] = 'config';
Find
$cfg['Servers'][$i]['host'] = 'localhost';
Add Below
$cfg['Servers'][$i]['user'] = 'root'; $cfg['Servers'][$i]['password'] = 'YOUR_MYSQL_ROOT_PW_HERE';