public function getKeywords($generateIfEmpty = true, $data = null)
{
$keywords = parent::getKeywords();
if (!$generateIfEmpty) {
return $keywords;
}
if ($keywords == null && $data != null) {
$preg = '/<h[123456].*?>(.*?)<\\/h[123456]>/i';
$content = str_replace("\n", "", str_replace("\r", "", $data));
$pregCount = preg_match_all($preg, $content, $headers);
$keywords = '';
for ($i = 0; $i < $pregCount; $i++) {
if ($keywords != '') {
$keywords .= ', ';
}
$item = trim(strip_tags($headers[0][$i]));
if ($item == '') {
continue;
}
$keywords .= $item;
if (mb_strlen($keywords) > 200) {
break;
}
}
}
if ($keywords == null && isset(Yii::app()->domain)) {
$keywords = Yii::app()->domain->model->keywords;
}
return str_replace('@', '[at]', $keywords);
}
