<?php
$connection = mysql_connect("localhost","","")    or die("Couldn't make connection.");
$db = mysql_select_db("", $connection)     or die("Couldn't select database");

$target=$_SERVER["PHP_SELF"];

if (isset($_SESSION['level'])) {
        if (isset($logout)){
            session_unregister("level");
        }else{
           echo"
            <form name=form1 method=post action=$target>
                
                    You are logged
                    
                    
                        <input name=logout type=hidden value=logout>
                        <input name=submit type=image src=logout.gif  border=0>
                                                 </form>";
                 }
                               }
if (!isset($_SESSION['level'])) {
    if (isset($username)){
        $query = "SELECT level FROM users WHERE username='$username' AND password='$password'" or die("Wrong Password");
        $sql_results = mysql_query($query,$connection);
            while ($row = mysql_fetch_array($sql_results)) {
                $level = $row['level'];
                    session_register("level");
            }
    }
    if (isset($_SESSION['level'])) {
           echo"
            <form name=form1 method=post action=$target>
                        You are logged in
                        <input name=logout type=hidden value=logout>
                        <input name=submit type=image src=logout.gif  border=0 >
            </form>";
    }else{
        echo"
            <form name=form1 method=post action=$target>
                    username:
                                               <input type=text name=username class=form>

                                password:
                    
                        <input type=text name=password class=form>
                
                        <td align=right>
                        <input name=submit type=image src=go.gif  border=0 >
                                    
                
            </form>";
    }
}
?>

<?php session_start();?>
<?php include("login.php"); ?>
<?php
if ((isset($_SESSION['level'])) && ($_SESSION['level']==1)) {
                echo "I want only guests to see this";
         }?>    
<?php if ((isset($_SESSION['level'])) && ($_SESSION['level']==2)) {
                echo "I want only employers to see this";
        }?>    

        <?php if ((isset($_SESSION['level'])) && ($_SESSION['level']==3)) {
                echo "I want only friends to see this";
        
        }?>    

        <?php if ((isset($_SESSION['level'])) && ($_SESSION['level']==4)) {
                echo "I want only family to see this";
        }?>