PHP File Functions?

[Irksome]

Hi, I'm fairly basic with PHP at the moment, but I have one small question.

 

Currently, I have three files in my test section. Index.php, members.php and login.php. Now I want all of this to be on one page. FOr example, when you want to view the memberlist, instead of going to members.php you go to index.php?action=members.

 

I don't know what it's actually called, but could someone shed some light on a quick and easy way to do this?

 

Any help would be most appreciated.

 

Thanks.

[per1os]

www.php.net/include

 

<?php

$action = isset($_GET['action'])?$_GET['action']:'index';

switch ($action) {
       default:
       case 'index':
             include('main.php');
       break;

      case 'members':
            include('members.php');
       break;

      case 'login':
            include('login.php');
      break;
}


?>