Track login dates of users

Question

Hello,
I have an index page with two fields (username and password). The form uses the login server behavior of Dreamweaver CS4.
I use php and mysql.
I would like to add a record called "lastlogin" to my "members" table that will be updated with the current date every time someone logs on using the login form on my index page.
How can I achieve this?
Thank you.

Answer 1

On my index.php page I guess I need something like this:
mysql_query("UPDATE members SET lastlogin='" . time() . "' WHERE username='{$username}' LIMIT 1");
Not sure where I should place it though? Can someone assist?  Here is my index.php code:
<?php require_once(connect.php); ?>
<?php
if (!function_exists("GetSQLValueString")) {
function GetSQLValueString($theValue, $theType, $theDefinedValue = "", $theNotDefinedValue = "")
  if (PHP_VERSION < 6) {
    $theValue = get_magic_quotes_gpc() ? stripslashes($theValue) : $theValue;
  $theValue = function_exists("mysql_real_escape_string") ? mysql_real_escape_string($theValue) : mysql_escape_string($theValue);
  switch ($theType) {
    case "text":
      $theValue = ($theValue != "") ? "'" . $theValue . "'" : "NULL";
      break;   
    case "long":
    case "int":
      $theValue = ($theValue != "") ? intval($theValue) : "NULL";
      break;
    case "double":
      $theValue = ($theValue != "") ? doubleval($theValue) : "NULL";
      break;
    case "date":
      $theValue = ($theValue != "") ? "'" . $theValue . "'" : "NULL";
      break;
    case "defined":
      $theValue = ($theValue != "") ? $theDefinedValue : $theNotDefinedValue;
      break;
  return $theValue;
?>
<?php
// *** Validate request to login to this site.
if (!isset($_SESSION)) {
  session_start();
$loginFormAction = $_SERVER['PHP_SELF'];
if (isset($_GET['accesscheck'])) {
  $_SESSION['PrevUrl'] = $_GET['accesscheck'];
if (isset($_POST['username'])) {
  $loginUsername=$_POST['username'];
  $password=$_POST['password'];
  $MM_fldUserAuthorization = "";
  $MM_redirectLoginSuccess = "account.php";
  $MM_redirectLoginFailed = "index.php";
  $MM_redirecttoReferrer = false;
  mysql_select_db($database_connectDB, $connectDB);
  $LoginRS__query=sprintf("SELECT username, password FROM members WHERE username=%s AND password=%s",
    GetSQLValueString($loginUsername, "text"), GetSQLValueString($password, "text"));
  $LoginRS = mysql_query($LoginRS__query, $connectDB) or die(mysql_error());
  $loginFoundUser = mysql_num_rows($LoginRS);
  if ($loginFoundUser) {
     $loginStrGroup = "";
    //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 );
?>