Parse error: syntax error, unexpected T_STRING in /users/popex/www.clarkeology.com/php/xmlObject.php(1282) : regexp code on line 1

Fatal error: preg_replace() [<a href='function.preg-replace'>function.preg-replace</a>]: Failed evaluating code: &quot; &lt;a href=\&quot;http://twitter.com/&quot; . 3am . &quot;\&quot; class=\&quot;twitter\&quot; title=\&quot;Twitter\&quot;&gt;@&quot; . 3am . &quot;&lt;/a&gt; &quot; in /users/popex/www.clarkeology.com/php/xmlObject.php on line 1282