rss feed in php,mysql

Question

Any can help me, I am generating rss feed from my mysql table.one column(mess_data) has data as

<b>
Join Video Chat Now http://www.xyz.com/joinnowdemo.php?usr_response=ratul&amp;room=16&amp;usr_requested=jokam&lt;/b&gt;

but when i put this on rss description tag

<code>
<description>$row['mess_data']</description>
</code>

is not working. I check if i write my name under description tag ,it's display the result proper way. help where i m wrong