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session_start();

<?php

/* check login script, included in db_connect.php. */

session_start();

if (!isset($_SESSION['username']) || !isset($_SESSION['password'])) {
$logged_in = 0;
return;
} else {

// remember, $_SESSION['password'] will be encrypted.

if(!get_magic_quotes_gpc()) {
 $_SESSION['username'] = addslashes($_SESSION['username']);
}


// addslashes to session username before using in a query.
$pass = $db_object->query("SELECT password FROM users WHERE username = '".$_SESSION['username']."'");

if(DB::isError($pass) || $pass->numRows() != 1) {
 $logged_in = 0;
 unset($_SESSION['username']);
 unset($_SESSION['password']);
 // kill incorrect session variables.
}

$db_pass = $pass->fetchRow();

// now we have encrypted pass from DB in
//$db_pass['password'], stripslashes() just incase:

$db_pass['password'] = stripslashes($db_pass['password']);
$_SESSION['password'] = stripslashes($_SESSION['password']);



//compare:



if($_SESSION['password'] == $db_pass['password']) {
 // valid password for username
 $logged_in = 1; // they have correct info
    // in session variables.
} else {
 $logged_in = 0;
 unset($_SESSION['username']);
 unset($_SESSION['password']);
 // kill incorrect session variables.
}
}


// clean up
unset($db_pass['password']);

$_SESSION['username'] = stripslashes($_SESSION['username']);

?>

<?php
$thisvariable="nothing";
session_start();
echo("<meta http-equiv=\"Cache-Control\" content=\"private\">");
?>

<?php
$thisvariable="nothing";
echo("<meta http-equiv=\"Cache-Control\" content=\"private\">");
session_start();
?>