/**
* Stem all tokens in the input array using the Porter stemming algorithm
* @param $tokens array of tokens to stem
* @return array Array of the stemmed tokens
*/
protected function stem(array $tokens)
{
return array_map(function ($token) {
if (in_array($token, $this->stopWords)) {
return $token;
}
return \Porter::Stem($token);
}, $tokens);
}
<?php
require 'vendor/autoload.php';
use ZendSearch\Lucene\Lucene;
use ZendSearch\Lucene\MultiSearcher;
use ZendSearch\Lucene\Search\QueryParser;
$stem = function ($e) {
return \Porter::Stem($e);
};
$q = isset($_GET['q']) ? $_GET['q'] : null;
$q = htmlentities($q);
$q = implode('+', array_map($stem, explode(' ', $q)));
header('Content-Type: application/json');
$output = array();
if ($q) {
$indexer = Lucene::open('../_index');
$search = new MultiSearcher(array($indexer));
$query = QueryParser::parse($q);
$result = $search->find($query);
foreach ($result as $hit) {
$title = strtolower(str_replace('-', ' ', $hit->name));
$resultUrl = '../' . $hit->fileName;
$output[] = array('href' => $resultUrl, 'name' => ucfirst($title), 'preview' => $query->htmlFragmentHighlightMatches(substr(preg_replace("/\\s+|{$title}/i", " ", $hit->body), 0, 300) . '...'));
}
}
echo json_encode($output);
