PHP MYSQL database connection not working?

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PHP

This is probably a dumb question considering the simplicity of my problem but I can't figure it out anyway.
So my problem is, I am simply trying to connect to my phpmyadmin database. I have done this before successfully but for some reason, this time it is not working. Here is my code:

$con = mysqli_connect("localhost","root","","nz_games");
if (mysqli_connect_errno()) {
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
?>

And here the error:
Failed to connect to MySQL: Access denied for user 'root'@'localhost' (using password: NO)

As far as I know there is no password to my database, the default username for phpmyadmin should be root and my table name is nz_games. Please Help!!