How to secure a PHP page ?

Hi all ! I am working on a website which is being developed using PHP-MySQL. I have to access the mysql database using username - password. The problem I'm having that I have kept username password in another file and used it as variables in wherever I need to connect to DB.

I have one file with username password:

Code:

File.php
---------
$username="root";
$lhost="localhost";
$secret="bhullarz";
$dbn="sample";

wherever I want to use it, I do the following:

Code:

require("file.php");
$con=mysql_connect($lhost,$username,$secret) or die("Server not Available");

But I don't think It's a secure practice as anyone can copy your website using website downloaders and can see the password. Is there anyother way to secure the password.

 

Ok. Thanks Shabbir. I tried few website copiers to download the website, which downloaded only HTML pages. It means PHP page won't be downloaded ?