The reason I did this is to hide the MySQL Password & Username
But it doesnt works.
//////////////////////////////////////
index.php ( www.clientdomain.com )
//////////////////////////////////////
include("http://www.abc.net/include.php");
$connection = mysql_connect($dbhost, $dbusername, $dbpass);
$SelectedDB = mysql_select_db($dbname);
//////////////////////////////////////
include.php (differnet domain & server - abc.net)
//////////////////////////////////////
$dbhost = "sql.xxxxxxxx.net";
$dbpass = "mypass";
$dbusername = "myusername";
$dbname = "mydbname";