[SOLVED] Help! Problem creating session

kjtocool · November 18, 2007

Hi there, I am having a problem creating a session and holding it across pages.

I start with a simple form that requests username and password. When the user clicks submit, it sends them to loginVal.php:

<?php
session_start();
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>Xtinct CMS</title>
<link href="main.css" rel="stylesheet" type="text/css">
<style type="text/css" >
<!--
.style1 {
font-family: Arial;
font-size: 16px;
color: #0F45FF;
font-weight: bold;
}
.style6 {
font-family: Arial;
font-size: 12px;
}
-->
</style></head>

<body>
<table width="670" border="0" align="center" cellpadding="0" cellspacing="0">
<form id="form1" name="form1" method="post" action="">
  <tr>
    <td background="images/top.jpg" height="50"> </td>
  </tr>
  <tr>
    <td background="images/middle.jpg" height="200" valign="top">
	<table width="670" border="0" cellspacing="0" cellpadding="0">
	  <tr>
		<td width="75"> </td>
		<td><p align="center"><span class="style1">Login</span></p>
		  <p align="left" class="style6">
			<?php
				$userName = $_POST["userName"];
				$_SESSION['userName'] = $userName;
				$passwordHash = md5($_POST["password"]);
				$_SESSION['passwordHash'] = $passwordHash;

				$databaseConnect = mysqli_connect("localhost", "username", "password", "database_name")
							Or die("Unable to connect to the database.");

				$query = "SELECT user_ID FROM Users WHERE username = '$userName' AND password = '$passwordHash' LIMIT 1";
				$result = mysqli_query($databaseConnect, $query);

				if (mysqli_num_rows($result) == 0)
					echo "Username or password is incorrect.";
				else
				{
					$row = mysqli_fetch_assoc($result);
					$_SESSION['userID'] = $row['user_ID'];
					echo "Successful Login";
					echo '<META HTTP-EQUIV="refresh" CONTENT="0.0; URL=http://www.thelink.com/options.php?' . SID . '">';
				}

				mysqli_free_result($result);
				mysqli_close($databaseConnect);
			?>
		  </p>
		  <br />
	    </td>
	    <td width="75"> </td>
	  </tr>
	</table>
</td>
  </tr>
  <tr>
    <td background="images/bottom.jpg" height="35"> </td>
  </tr>
  </form>
</table>
</body>
</html>

As you can see, I use session_start() to start the page. I then get values for username and password, hash the password, and make sure the login is valid. I pass values to a few $_SESSION variables, and if the login was valid, I redirect them to another page, options.php.

On options.php I run the following check:

<?php
session_start();

if (!isset($userID))
    {
        header("Location: http://www.thelink.com/index.php");
    }
?>

Even though I set the $_SESSION['userID'] variable, it always re-directs.

While troubleshooting, I tried echoing the SID in the loginVal.php file, and it came up as an empty string. So for whatever reason, I am not generating a session ID. I am new to sessions, can someone tell me what I am doing wrong?

KJ

pocobueno1388 · November 18, 2007

In options.php when do you define $userID? I don't even see a session on your previous page thats called userID.

Change this

if (!isset($userID))

To

if (!isset($_SESSION['userName']))

kjtocool · November 18, 2007

I never define $userID.

I defene $_SESSION['userID'] in loginVal.php here:

if (mysqli_num_rows($result) == 0)

echo "Username or password is incorrect.";

else

{

$row = mysqli_fetch_assoc($result);

$_SESSION['userID'] = $row['user_ID'];

echo "Successful Login";

echo '<META HTTP-EQUIV="refresh" CONTENT="0.0; URL=http://www.thelink.com/options.php?' . SID . '">';

}

In any case, apparently my problem was that this:

if (!isset($userID))

should have been:

if (!isset($_SESSION['userID']))

So it works now. Thanks a bunch!

Sign In

[SOLVED] Help! Problem creating session

Recommended Posts

kjtocool

Link to comment

Share on other sites

pocobueno1388

Link to comment

Share on other sites

kjtocool

Link to comment

Share on other sites

Join the conversation

Browse

Activity

Important Information