Hello world.<br />
<b>Fatal error</b>:  Uncaught mysqli_sql_exception: Access denied for user 'root'@'localhost' (using password: YES) in /var/www/html/index.php:13
Stack trace:
#0 /var/www/html/index.php(13): mysqli_connect()
#1 {main}
  thrown in <b>/var/www/html/index.php</b> on line <b>13</b><br />