<?php

    //include the connect-script
    include("connect.php");

    //if the superglobal $_POST['name'] is set, insert the data in the database
    if(isset($_POST['name'])){
        mysql_query("INSERT INTO users (name)
                    VALUES ('$_POST['name']')";
    //else, echo the form
    }else{
        echo '<form method="post" action="">
        Naam: <input type="text" name="name" /><br />
        <input type="submit" value="Registreren!" />
        </form>';
    }


?>