<link rel="stylesheet" href="/style/themes/<?=(($_COOKIE['USER_DESIGN'] != 'default' and isset($_COOKIE['USER_DESIGN'])) ? $_COOKIE['USER_DESIGN'] : 'default')?>.css" type="text/css">  <?php  if (isset($_GET['edit_themes'])) { $design = trim(htmlspecialchars($_POST['design'])); setcookie('USER_DESIGN', $design, 86400 * 365); exit(header('Location: ?')); } else { echo '<form action="?edit_themes">'; echo '<select name="design" onchange="window.location.href=this.value">'; echo '<option selected disabled> Выберите тему для сайта: </option>'; echo '<option value="blue"> Синий </option>'; echo '<option value="green"> Зелёный </option>'; echo '<option value="red"> Красный </option>'; echo '</select></form>'; }