Sacar por pantalla datos de usuarios

[teniasaginata]

Me faltó en codigo de las variables de sesion.

<?php
// *** Validate request to login to this site.
if (!isset($_SESSION)) {
session_start();
}

$loginFormAction = $_SERVER['PHP_SELF'];
if (isset($_GET['accesscheck'])) {
$_SESSION['PrevUrl'] = $_GET['accesscheck'];
}

if (isset($_POST['usuario'])) {
$loginUsername=$_POST['usuario'];
$password=$_POST['contrasena'];
$MM_fldUserAuthorization = "";
$MM_redirectLoginSuccess = "datos-de-usuarios.php";
$MM_redirectLoginFailed = "error-login.php";
$MM_redirecttoReferrer = false;
mysql_select_db($database_pirata, $pirata);

$LoginRS__query=sprintf("SELECT usuario, contrasena FROM login WHERE usuario=%s AND contrasena=%s",
GetSQLValueString($loginUsername, "text"), GetSQLValueString($password, "text"));

$LoginRS = mysql_query($LoginRS__query, $pirata) or die(mysql_error());
$loginFoundUser = mysql_num_rows($LoginRS);
if ($loginFoundUser) {
$loginStrGroup = "";

if (PHP_VERSION >= 5.1) {session_regenerate_id(true);} else {session_regenerate_id();}
//declare two session variables and assign them
$_SESSION['MM_Username'] = $loginUsername;
$_SESSION['MM_UserGroup'] = $loginStrGroup;

if (isset($_SESSION['PrevUrl']) && false) {
$MM_redirectLoginSuccess = $_SESSION['PrevUrl'];
}
header("Location: " . $MM_redirectLoginSuccess );
}
else {
header("Location: ". $MM_redirectLoginFailed );
}
}
?>