Conditional statements

Is it possible to create something like this inside this widget…??

<ul>
  <li <?php if ('body.home') { ?>class="selected"<?php } ?>>home<li>
  <li <?php if ('body.about') { ?>class="selected"<?php } ?>>about<li>
  ...
</ul>

http://ww.wp.xz.cn/extend/plugins/php-code-widget/