<?php
    if ($_POST) {
        $link = mysql_connect("localhost", "root", "Gilad2007");
        if (!$link) {
            die ("Couldn't connect to server: " . mysql_error());
        }

        $db_selected = mysql_select_db("test", $link);
        if (!$db_selected) {
            die ("can't use database: " . mysql_error());
        }

        $provided_username = $_POST['username'];
        $provided_email = $_POST['email_adress'];
        $provided_password = $_POST['password'];

        $querry = sprintf("insert into clients (username, email, password) values ('%s', '%s', '%s')",
                          $provided_username,
                          mysql_real_escape_string($provided_email),
                          mysql_real_escape_string($provided_password));

        mysql_query($querry);

    }

?>