/**
* Highlight $text for the $query using $index
* @param string $text Text content
* @param string $index Sphinx index name
* @param string $query Query to search
* @param array[optional] $options Options to pass to SphinxAPI
*
* @return string
*/
public function sphinx_highlight($text, $index, $query, $options = array())
{
$result = $this->searchd->getClient()->BuildExcerpts(array((string) $text), $index, $query, $options);
if (!empty($result[0])) {
return $result[0];
} else {
return '';
}
}