my name jeff

<?php
    if (isset($_POST["username"]) and isset($_POST["password"]))
    {
        $username = $_POST["username"];
        $password = $_POST["password"];

        // connect to database
        $dbc = mysql_connect ('localhost','id4834055_jammyhall','password');
        mysql_select_db('id4834055_blogbase');
        // run insert query
        $result = mysql_query("INSERT INTO user (username, password) VALUES ('$username','$password')");
        // redirect to login page
        header("location:login.php");
    }
    else
    {
        // username or password not posted, redirect back to add user form
        header("location:Signup.php");
    }
?>