changename.php

<?php
require_once ('Plans.php');
require ('functions-main.php');
require ("syntax-classes.php");
$dbh = db_connect();
$idcookie = User::id();
// Create the new page
$page = new PlansPage('Preferences', 'planname', PLANSVNAME . ' - Change Name', 'changename.php');
if (!User::logged_in()) {
    populate_guest_page($page);
    //tell them not able to use page
    $page->append(new AlertText("You are not allowed to edit this option as a guest.", false));
    interface_disp_page($page);
} else
//allowed to edit
{
    populate_page($page, $dbh, $idcookie);
    $title = new HeadingText('Change Name', 1);
    $page->append($title);
    if (isset($_POST['user_name'])) //check to see if form has been submitted, process if so.
    {
        $user_name = htmlspecialchars($_POST['user_name']); //strip out html chars
        set_item($dbh, "accounts", "pseudo", $user_name, "userid", $idcookie); //set pseudoname in database
        $message = new InfoText("Name changed to <b>" . stripslashes($user_name) . "</b>.", NULL); //tell user their name has been changed
        $page->append($message);
    } //if changing name
    else { //if not changing name, give form
        $old_name = stripslashes(get_item($dbh, "pseudo", "accounts", "userid", $idcookie)); //get old name
        /* create the page and form */
        $nameform = new Form('changename', 'Change Name');
        $page->append($nameform);
        $nameform->action = 'changename.php';
        $nameform->method = 'POST';
        /* add fields to the form */
        $item = new TextInput('user_name', $old_name);
        $nameform->append($item);
        $item = new SubmitInput('Change Name');
        $nameform->append($item);
    } //else, if not changing name, give form
    interface_disp_page($page);
} //if is a valid user
db_disconnect($dbh);
?>