public function getSummary($text)
{
$sentences = $this->config->trigger('get_sentences', $text);
$candidates = [];
$x = microtime(true);
foreach ($sentences as $id => $t) {
try {
$words = $this->config->trigger('get_words', $t);
$words = $this->config->trigger('filter_keywords', $words);
$words = $this->config->trigger('normalize_keywords', $words);
$words = array_filter($words, function ($word) {
return !ctype_punct($word);
});
$candidates[$id] = $words;
} catch (\Exception $e) {
}
}
$pr = new SummaryPageRank();
$sorted = $pr->sort($candidates);
$keys = array_slice($sorted, 0, ceil(count($sorted) * 0.05), true);
$txt = "";
foreach (array_keys($keys) as $key) {
$txt .= $sentences[$key] . "\n";
}
return $txt;
} /**
* Extract relevant summary from text
*
* @param string|null $text
* @param int|null $limit
* @param bool|true $withoutStopWords
*
* @return string
*/
public function summary($text = null, $limit = null, $withoutStopWords = true)
{
$config = new Config();
if ($withoutStopWords) {
$config->addListener(new Stopword());
}
$analyzer = new Summary($config);
try {
$summary = $analyzer->getSummary($this->cleanup($text));
if ($summary && is_integer($limit)) {
$summary = mb_strimwidth($summary, 0, $limit, "...");
}
} catch (\RuntimeException $e) {
$summary = null;
}
return $summary;
}
