_nodewords_check_content($text) :. Creates a fatal error

The function _nodewords_check_content($text) :. Creates a fatal error when a node is submited in Full HTML.

Parse error: syntax error, unexpected T_STRING in
/www/sites/all/modules/nodewords/nodewords.module(812) : regexp code on line 1

Fatal error: preg_replace()

<b>$pattern = '/<img\s[^>]*alt=["\']([^"\']*)["\'][^>]*>/e';</b>
$replacement = '${1}';
$text = preg_replace($pattern, $replacement, $text);