@natar (assuming you've created the respective files)
<?php $phpself = $_SERVER['PHP_SELF']; //its you php page. switch($_GET['id']) { case '1': include("home.php"); break; case '2': include("home_2.php"); break; } echo "<a href=$phpself?id=1>Login</a><br><a href=$phpself?id=2>forum</a>"; ?>