having a problem with login script
(these scripts are based off of chapter 13 in the "Beginning PHP, MySQL and APACHE" book.)
Whenever I try to login to my site, the login page passes through transact-user.php, but never redirects back to index.php. it sits at transact-user.php and shows a blank white page. I have also customized it so that none of the pages include the "header.php" that is in the book.
heres the login page, it's just a form and there is no PHP scripting on the page:
<form action="transact-user.php" method="post">
Username:
<input name="email" type="text">
<br /><br />
Password:
<input name="passwd" type="password">
<br /><br />
<input type="submit" name="submit" value="Login">
</form>
and heres the login/logout part of the transact-user.php page:
<?php
require_once 'conn.php';
if (isset($_REQUEST['action'])) {
switch ($_REQUEST['action']) {
case 'Login':
if (isset($_POST['email'])
and isset($_POST['passwd']))
{
$sql = "SELECT user_id, access_lvl,name " .
"FROM cms_users " .
"WHERE email='" . $_POST['email'] . "' " .
"AND passwd='" . $_POST['passwd'] . "'";
$result = mysql_query($sql, $conn)
or die('Could not look up user information; ' .
mysql_error());
if ($row = mysql_fetch_array($result)) {
session_start();
$_SESSION['user_id'] = $row['user_id'];
$_SESSION['access_lvl'] = $row['access_lvl'];
$_SESSION['name'] = $row['name'];
}
}
redirect('index.php');
break;
case 'Logout':
session_start();
session_unset();
session_destroy();
redirect('index.php');
break;
..... etc
I cannot for the life of me figure out why it does nothing after clicking the "login" button on the form except go to a blank white page. am I missing something?
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