2012-07-09 15:44



I'm having a problem were Im on the main page and I login then I go to a different page and I don't see the stored session anymore, but when i click login it says Im already logged in. But if I go to a different directory such as /admin/ the Session data is still there. Any Solutions?



if($_SESSION['username']) {

    echo '<div class="error_message">Attention! '.$_SESSION['username'].'. You  are already logged in.</div>';
    echo "<br />";
    echo "Go <a target='top' href='index.php'>back</a> to the page you were viewing before this.</li>";


// Has an error message been passed to login.php?
$error = $_GET['e'];

if($error == 1) {
    $error = '<div class="error_message">Attention! You must be logged in to view this page.</div>';

// Only process if the login form has been submitted.

if(isset($_POST['login'])) {

    $username = $_POST['username']; 
    $password = $_POST['password']; 

        if (empty($username) || empty($password)) { 
        $error = '<div class="error_message">Attention! Please enter your Username and Password.</div>';
    } else { 

    // Add slashes to the username and md5() the password 
    $user = mysql_real_escape_string(addslashes($_POST['username'])); 
    $pass = mysql_real_escape_string(md5($_POST['password'])); 

    $sql = "SELECT * FROM  users WHERE username = '$user' AND password= '$pass' OR email = '$user' AND password= '$pass' "; 

    $result = mysql_query($sql);

    // Check that at least one row was returned 
    $rowCheck = mysql_num_rows($result); 

    if($rowCheck > 0) { 
    while($row = mysql_fetch_array($result)) { 

      // Start the session and register a variable 
          setcookie(kitbusername, $user,  time()+(3600*24*30));
      $_SESSION['username'] = $user;

      echo '<script>parent.changeURL("index.php"); </script>';


      } else { 

      // If nothing is returned by the query, unsuccessful login code goes here... 

      $error = '<div class="error_message">Attention! Incorrect username or password.</div>'; 
echo $error; ?>

header.php on every page

<div id="loginoutbox">
<?php session_start(); 
  if($_SESSION["username"]) { ?>
  Hello <?php echo $_SESSION['username']; ?>! | </div>
<a id="register" href="http://www.kdogisthebest.webege.com/admin/" class="button">Dashboard</a> |
<a id="signin" href="#fallr-confirmlike" class="button">Logout</a>      
<?php }else{ ?>
<div style="display: inline-block; font-size: 14px; padding-left: 20px;">Hello Guest!</div>
<a id="register" href="#fallr-register" class="button">Register</a> |
<a id="signin" href="#fallr-signin" class="button">Login</a>
<?php } ?>

Demo ---> http://www.kdogisthebest.webege.com/index.php

Username = demouser

Password = demouser

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  • doukan4795 doukan4795 9年前

    Ok after dumping the $_SESSION variable with var_dump i see that After changing pages the variable shows up as NULL. I goggled and did research and I think its best to conclude that it is a php server configuration that is causing it to act this way.

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  • drgmszo076956 drgmszo076956 9年前

    <?php session_start(); needs to be before any output. Put it at the top of your page.

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