db.inc

<?php
$host="localhost";
$user="root";
$pwd="badboy";
?>

index.php

<?php
require_once "php.inc";
$db=mysql_pconnect($host,$user,$pwd);
if ($db){
echo "连接成功!";
}
?>

以后扩充.......初学php,呵呵~~~有会的朋友教我两招~~~My QQ:383088680