/** see if the word is an already learnt word.
@return bool
@param string word
*/
function wordExists($word)
{
$crit = new Criteria('word', $word);
$ret = $this->con->query('SELECT COUNT(*) as WordCount FROM ' . $this->con->prefix('xhelp_bayes_wordfreqs') . $crit->renderWhere());
if (!$ret) {
return false;
} else {
$arr = $this->con->fetchRow($ret);
return $arr['WordCount'] > 0;
}
}
