[Mysql_connect]

I was just Experimenting on the tutorial I just read. ANd I found out I do not have a db.php file. Can someone please explain how I could go about this?

<?php

mysql_connect("localhost","username","password") or die ("Unable to connect to MySQL server.");
$db = mysql_select_db("name_of_database") or die ("Unable to select requested database.");
?>

But I am afraid I do not know how to replace the contants. Can some one do that for me?

The database username is "Clienty" and the password is "clienty"

But I do not know the host, or whta it looks like
Could this be it? *http://mysqladmin.fatcow.com/mysqladmin/main.php?*
OR *http://mysqladmin.fatcow.com/mysqladmin/db_details_structure.php?db=clienty*
what could be my local host? I need an example. if my site is abc.com

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Notin much'Just me'