สอบถามเรื่องการ connect ฐานข้อมูล mysql server 2008 ในหนึ่งโฮส เราสามารถเขียนโค๊ด connect หลายๆ ฐานข้อมูลยังไงครับ

$servername1 = "localhost";
$user1 = "sa"; 
$pass1 = ""; 
$objConnect1 = mssql_connect("$servername1","$user1","$pass1") or die("Error Connect to Database facultys");
$objDB1 = mssql_select_db("facultys");
///////
$servername2 = "localhost";
$user2 = "sa"; 
$pass2 = ""; 
$objConnect2 = mssql_connect("$servername2","$user2","$pass2") or die("Error Connect to Database Document");
$objDB2 = mssql_select_db("Document");
///////
$servername3 = "localhost";
$user3 = "sa"; 
$pass3 = " "; 
$objConnect3 = mssql_connect("$servername3","$user3","$pass3") or die("Error Connect to Database planning");
$objDB3 = mssql_select_db("planning");