Question

I’m making a login page well i’ve actually finished the login but how would i go about having the web page display diffren’t things based on a users privileges and how would i set the privileges in my mysql database? and then use them in my php code?

Answer 1

I usually make a field in the users table called admin or in this case maybe privilege_level, then in your php, you define what values of that field correspond to what levels of privilege.

EDIT (example):

// start session on every page using $_SESSION array
session_start();
session_name("Your Site Name");
header("Cache-control: private");

// in login file:
$q = mysql_query("SELECT uid, privilege_level FROM users WHERE pw = 'escaped_and_preferrably_hashed_password' AND username = 'escaped_username' LIMIT 0,1");

// if row found:
if($q && mysql_num_rows($q) > 0){

    // get associative array
    $array = mysql_fetch_assoc($q);

    // set session vars
    $_SESSION['privilege_level'] = $array['privilege_level'];

}

Then, on pages where you want to check the privilege level you can use a switch or other control structure/design pattern to load content dynamically, ie:

switch($_SESSION['privilege_level']){
    default:
        echo 'you have no privileges';
    break;
    case "1":
        echo 'you have some privileges';
    break;
    case "2":
        echo 'you have lots of privileges';
    break;
}