login No idea whats Up

[simonb]

PHP: Select all

<?php include('./Connections/Blogs.php'); ?>
<?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['textfield'])) {
  $loginUsername=$_POST['textfield'];
  $password=$_POST['textfield2'];
  $MM_fldUserAuthorization = "";
  $MM_redirectLoginSuccess = "/index.php";
  $MM_redirectLoginFailed = "/fail.php";
  $MM_redirecttoReferrer = true;
  mysql_select_db($database_Blogs, $Blogs);
  
  $LoginRS__query=sprintf("SELECT UserName, UserPsswrd FROM users WHERE UserName='%s' AND UserPsswrd='%s'",
    get_magic_quotes_gpc() ? $loginUsername : addslashes($loginUsername), get_magic_quotes_gpc() ? $password : addslashes($password)); 
   
  $LoginRS = mysql_query($LoginRS__query, $Blogs) 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']) && true) {
      $MM_redirectLoginSuccess = $_SESSION['PrevUrl'];    
    }
    header("Location: " . $MM_redirectLoginSuccess );
  }
  else {
    header("Location: ". $MM_redirectLoginFailed );
  }
}
?>

Is giving me this error when someone logs in.

Warning: Cannot modify header information - headers already sent by (output started at D:\Program Files\wamp\www\index.php:27) in D:\Program Files\wamp\www\login.php on line 37

[dab42pat]

Ive had that before. the php code had to start on line 1 on the page its used on.

[jimz]

you can't have any output before you do your session_start function.
It needs to be right up the top of the page, or before any echo/print or html output

You are probably echoing or printing something in Connections/Blogs.php before trying to start the session.

If you're still having problems, post up the code for Connections/Blogs.php

Cheers,
Jim.

[simonb]

thanks I fixed it by moving the login