Here is the problem, people can sign up and log in, but the second they leave the: Welcome (whatever username)! page, they get logged out. Here is the login script.
<?php
session_start();
// Check if he wants to login:
if (!empty($_POST[username]))
{
require_once("connect.php");
// Check if he has the right info.
$query = mysql_query("SELECT * FROM members
WHERE username = '$_POST[username]'
AND password = '$_POST[password]'")
or die ("Error - Couldn't login user.");
$row = mysql_fetch_array($query)
or die ("Error - Couldn't login user.");
if (!empty($row[username])) // he got it.
{
$_SESSION[username] = $row[username];
echo "Welcome $_POST[username]! You've been successfully logged in. <a href=\"/index.php\" title=\"Click here to go back to the homepage.\">Home Page</a></li></ul>";;
exit();
}
else // bad info.
{
echo "Error - Couldn't login user.<br /><br />
Please try again.";
exit();
}
}
?>
<html>
<head>
<title>Login</title>
</head>
<body>
<form action="login.php" method="post">
<table width="75%" border="1" align="center" cellpadding="3" cellspacing="1">
<tr>
<td width="100%"><h5>Login</h5></td>
</tr>
<tr>
<td width="100%"><label>Username: <input type="text" name="username" size="25" value="<? echo $_POST[username]; ?>"></label></td>
</tr>
<tr>
<td width="100%"><label>Password: <input type="password" name="password" size="25" value=""></label></td>
</tr>
<tr>
<td width="100%"><input type="submit" value="Login!"></td>
</tr>
<tr>
<td width="100%">Don't have an account? Click <a href="/register.php">Here</a> To register.</td></tr>
</table>
</form>
</body>
</html>
