title: how to install new version of phpmyadmin to a server?
body: <p>Built-in phpmyadmin on control panel of my domain is old version so I wanted to change it to new one. I uploaded new version of phpmyadmin through ftp (folder: mydomain.com/phpmyadmin). Previously, I changed config.sample.inc.php to config.inc.php and added random string value in field $cfg['blowfish_secret']. 
  Now, I cannot login in phpmyadmin and I cannot find which username to use(tried 'root',admin etc...). Whatever I enter in login form i receive error message "Cannot log in to the MySQL server".</p>
  
  <p>I know that It is a problem between phpmyadmin and MySQL, and I don't know what to do next? </p>