Need page to appear on confirmed user name and password please.

[11Tami]

Hi this is a log in script I found here:http://evolt.org/php_login_script_with_remember_me_feature?from=100&comments_per_page=50

I am going to add the login part of the script to an add/modify link so that when somone wants to add their own items it will add them and then they can also modify their own added items when they come back later. I can do the new form and database fields myself for the add and modify pages for each person. But this is where I am stuck.

How do I make it so that when a different person is logged in, their own page or link to a page will appear for them to insert their items into? For instance I think this is the part I need to adjust in the code further below, but someone who know more about database and php might tell me otherwise.

/* Validate that password is correct */
if($password == $dbarray['password']){
return 0; //Success! Username and password confirmed

Instead of just success, I would need an html page to appear just for this person
when their ursername and password are correct. How can I do this? thank you very much. Please get back to me. Below is all of the code for the login.php

<?

/**
* Checks whether or not the given username is in the
* database, if so it checks if the given password is
* the same password in the database for that user.
* If the user doesn't exist or if the passwords don't
* match up, it returns an error code (1 or 2).
* On success it returns 0.
*/
function confirmUser($username, $password){
global $conn;
/* Add slashes if necessary (for query) */
if(!get_magic_quotes_gpc()) {
$username = addslashes($username);
}

/* Verify that user is in database */
$q = "select password from users where username = '$username'";
$result = mysql_query($q,$conn);
if(!$result || (mysql_numrows($result) < 1)){
return 1; //Indicates username failure
}

/* Retrieve password from result, strip slashes */
$dbarray = mysql_fetch_array($result);
$dbarray['password'] = stripslashes($dbarray['password']);
$password = stripslashes($password);

/* Validate that password is correct */
if($password == $dbarray['password']){
return 0; //Success! Username and password confirmed
}
else{
return 2; //Indicates password failure
}
}

/**
* checkLogin - Checks if the user has already previously
* logged in, and a session with the user has already been
* established. Also checks to see if user has been remembered.
* If so, the database is queried to make sure of the user's
* authenticity. Returns true if the user has logged in.
*/
function checkLogin(){
/* Check if user has been remembered */
if(isset($_COOKIE['cookname']) && isset($_COOKIE['cookpass'])){
$_SESSION['username'] = $_COOKIE['cookname'];
$_SESSION['password'] = $_COOKIE['cookpass'];
}

/* Username and password have been set */
if(isset($_SESSION['username']) && isset($_SESSION['password'])){
/* Confirm that username and password are valid */
if(confirmUser($_SESSION['username'], $_SESSION['password']) != 0){
/* Variables are incorrect, user not logged in */
unset($_SESSION['username']);
unset($_SESSION['password']);
return false;
}
return true;
}
/* User not logged in */
else{
return false;
}
}

/**
* Determines whether or not to display the login
* form or to show the user that he is logged in
* based on if the session variables are set.
*/
function displayLogin(){
global $logged_in;
if($logged_in){
echo "<h1>Logged In!</h1>";
echo "Welcome <b>$_SESSION[username]</b>, you are logged in. <a href=\"logout.php\">Logout</a>";
}
else{
?>

<h1>Login</h1>
<form action="" method="post">
<table align="left" border="0" cellspacing="0" cellpadding="3">
<tr><td>Username:</td><td><input type="text" name="user" maxlength="30"></td></tr>
<tr><td>Password:</td><td><input type="password" name="pass" maxlength="30"></td></tr>
<tr><td colspan="2" align="left"><input type="checkbox" name="remember">
<font size="2">Remember me next time</td></tr>
<tr><td colspan="2" align="right"><input type="submit" name="sublogin" value="Login"></td></tr>
<tr><td colspan="2" align="left"><a href="register.php">Join</a></td></tr>
</table>
</form>

<?
}
}


/**
* Checks to see if the user has submitted his
* username and password through the login form,
* if so, checks authenticity in database and
* creates session.
*/
if(isset($_POST['sublogin'])){
/* Check that all fields were typed in */
if(!$_POST['user'] || !$_POST['pass']){
die('You didn\'t fill in a required field.');
}
/* Spruce up username, check length */
$_POST['user'] = trim($_POST['user']);
if(strlen($_POST['user']) > 30){
die("Sorry, the username is longer than 30 characters, please shorten it.");
}

/* Checks that username is in database and password is correct */
$md5pass = md5($_POST['pass']);
$result = confirmUser($_POST['user'], $md5pass);

/* Check error codes */
if($result == 1){
die('That username doesn\'t exist in our database.');
}
else if($result == 2){
die('Incorrect password, please try again.');
}

/* Username and password correct, register session variables */
$_POST['user'] = stripslashes($_POST['user']);
$_SESSION['username'] = $_POST['user'];
$_SESSION['password'] = $md5pass;

/**
* This is the cool part: the user has requested that we remember that
* he's logged in, so we set two cookies. One to hold his username,
* and one to hold his md5 encrypted password. We set them both to
* expire in 100 days. Now, next time he comes to our site, we will
* log him in automatically.
*/
if(isset($_POST['remember'])){
setcookie("cookname", $_SESSION['username'], time()+60*60*24*100, "/");
setcookie("cookpass", $_SESSION['password'], time()+60*60*24*100, "/");
}

/* Quick self-redirect to avoid resending data on refresh */
echo "<meta http-equiv=\"Refresh\" content=\"0;url=$HTTP_SERVER_VARS[PHP_SELF]\">";
return;
}

/* Sets the value of the logged_in variable, which can be used in your code */
$logged_in = checkLogin();

?>