Zend_Search_Lucene_Search_Query::highlightMatches() method allows the developer to highlight HTML document terms in the context of a search query.

In the previous article Zend Lucene Search - part3 - retrieving the indexed data i talked about retrieving the search results. When we search, highlighting the searched keyword in the search result is one of the important aspect which most search engines follow, in this article i will be writing about highlighting the search results retrieved using the zend lucene search.

<?phprequire_once ‘Zend/Search/Lucene.php’;$queryStr= "php";

$query = Zend_Search_Lucene_Search_QueryParser::parse($queryStr);

$index = Zend_Search_Lucene::open("/var/www/lucene-data/blog-index");

$results = $index->find($query);

echo "Index contains ".$index->count()." documents.\n\n";

if($index->count())

{

$count = 0;

foreach ($results as $result)

{

$data[$count]["article_url"]         = $result->url;

$data[$count]["article_title"]        = $query->highlightMatches($result->title);

$data[$count]["article_description"]        = $query->highlightMatches($result->contents);

$data[$count]["article_created_date_time"]    = $result->postedDateTime;

$data[$count]["article_id"]             = $result->articleId;

$count++;

}

}

print_R($data);

?>

This program is same as in the Zend Lucene Search - part3 - retrieving the indexed data only one thing differs is now i am calling highlightMatches for the search results returned.

Related articles:
Zend Lucene Search - part1 - creating index
Zend Lucene Search - part2 - Real time indexing
Zend Lucene Search - part3 - retrieving the indexed data