function searchstring_to_array($text)
{
//Codes entfernen
$text = clear_codes($text);
//Wörter trennen
$words = extract_words($text);
$words = array_unique($words);
//Stopwörter löschen
include 'lib/stopwords.php';
$filteredwords = array_diff($words, $stopwords);
$ignored = array_intersect($words, $stopwords);
//Wörter filtern
foreach ($filteredwords as $key => $word) {
$word = trim($word);
if (!$word || strlen($word) < 3 || strlen($word) > 50) {
if ($word) {
$ignored[] = $word;
}
unset($filteredwords[$key]);
}
}
$filteredwords = array_map('strtolower', $filteredwords);
//Kleinschreibung für Suchbegriffe
return array(array_unique($filteredwords), array_unique($ignored));
}
function update_index($text, $threadid, $postid, $title = false)
{
global $set, $db, $apx;
$threadid = (int) $threadid;
$postid = (int) $postid;
$title = (int) $title;
if (!$threadid) {
return false;
}
if (!$postid) {
return false;
}
//Codes entfernen
while (preg_match('#\\[([a-z0-9]+)(=.*?)?\\](.*?)\\[/\\1\\]#si', $text)) {
$text = preg_replace('#\\[([a-z0-9]+)(=.*?)?\\](.*?)\\[/\\1\\]#si', '\\3', $text);
}
//Wörter trennen
$text = strtolower($text);
$words = extract_words($text);
$words = array_unique($words);
//SQL erzeugen
include '../forum/lib/stopwords.php';
$values = '';
foreach ($words as $word) {
$word = trim($word);
if (!$word) {
continue;
}
//Leere Wörter überspringen
if (strlen($word) < 3) {
continue;
}
//Wörter kürzer als 3 Zeichen überspringen
if (strlen($word) > 50) {
continue;
}
//Wörter länger als 50 Zeichen überspringen
if (in_array($word, $stopwords)) {
continue;
}
//Stopwörter überspringen
$values .= iif($values, ',') . "('" . addslashes(strtolower($word)) . "','" . $threadid . "','" . $postid . "','" . $title . "')";
}
//In die Datenbank eintragen
if ($values) {
$db->query("INSERT INTO " . PRE . "_forum_index (word,threadid,postid,istitle) VALUES " . $values);
}
return true;
}
function separate_words($string)
{
$ci = load_ci();
$words = clean_string(extract_words($string));
$wordsArray = array_keys($words);
$x = 0;
foreach ($wordsArray as $str) {
$countWords = count($wordsArray) - 1;
if ($countWords != $x) {
$wordSeparator = ',';
} else {
$wordSeparator = '';
}
echo preg_replace('/(\\w{2,})(?=.*?\\1)\\W*/', '', $str) . $wordSeparator;
$x++;
}
}
