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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>

I just realized I don't really have any way of know if this code is working, can you give me a script that says something like: Welcome (username)! so I know whether or not you can stay logged in? I've tried other codes but they don't work with my scripts.

 

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();

}

 

I don't know why you have two semi colons above.

 

you need session_start(); at the top of every page that you're going to use sessions, it needs to be the first thing on the page after the opening php tag and a few comments if any.

 

you can

echo "Welcome {$row['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>";

 

or

 

echo "Welcome {$_SESSION[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>";

 

or get rid of all that double quote stuff

 

echo 'Welcome '.$_SESSION[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>';

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