title: site_url() is not work properly in codeigniter framework
body: <p>The following code does not work properly for the Codeigniter framework...</p>
  
  <p>Its my View:</p>
  
  <pre><code>&lt;?php
      echo '&lt;h2&gt;'.$news_item['title'].'&lt;/h2&gt;';
      echo $news_item['text']."&lt;/br&gt;&lt;/br&gt;";
  ?&gt;
  &lt;a href="&lt;?php site_url("news"); ?&gt;" &gt; Back to Main &lt;/a&gt;&lt;/br&gt;&lt;/br&gt;
  </code></pre>