/**
* Returns censored words from a text.
*
* @param string $text
* @return mixed $matches / false
*/
public static function test($text)
{
// reset matches
self::$matches = array();
// get words which should be censored
$censoredWords = explode("\n", StringUtil::unifyNewlines(StringUtil::toLowerCase(CENSORED_WORDS)));
// format censored words
$censoredWords = ArrayUtil::trim($censoredWords);
// string to lower case
$text = StringUtil::toLowerCase($text);
// ignore bbcode tags
$text = preg_replace('~\\[/?[a-z]+[^\\]]*\\]~i', '', $text);
// split the text in single words
self::$words = preg_split("!" . self::$delimiters . "+!", $text, -1, PREG_SPLIT_NO_EMPTY);
// check each word if it censored.
for ($i = 0, $count = count(self::$words); $i < $count; $i++) {
$word = self::$words[$i];
foreach ($censoredWords as $censoredWord) {
// check for direct matches ("badword" == "badword")
if ($censoredWord == $word) {
// store censored word
if (isset(self::$matches[$word])) {
self::$matches[$word]++;
} else {
self::$matches[$word] = 1;
}
continue 2;
} else {
if (StringUtil::indexOf($censoredWord, '*') !== false) {
$censoredWord = StringUtil::replace('\\*', '.*', preg_quote($censoredWord));
if (preg_match('!^' . $censoredWord . '$!', $word)) {
// store censored word
if (isset(self::$matches[$word])) {
self::$matches[$word]++;
} else {
self::$matches[$word] = 1;
}
continue 2;
}
} else {
if (StringUtil::indexOf($censoredWord, '~') !== false) {
$censoredWord = StringUtil::replace('~', '', $censoredWord);
if (($position = StringUtil::indexOf($censoredWord, $word)) !== false) {
if ($position > 0) {
// look behind
if (!self::lookBehind($i - 1, StringUtil::substring($censoredWord, 0, $position))) {
continue;
}
}
if ($position + StringUtil::length($word) < StringUtil::length($censoredWord)) {
// look ahead
if ($newIndex = self::lookAhead($i + 1, StringUtil::substring($censoredWord, $position + StringUtil::length($word)))) {
$i = $newIndex;
} else {
continue;
}
}
// store censored word
if (isset(self::$matches[$censoredWord])) {
self::$matches[$censoredWord]++;
} else {
self::$matches[$censoredWord] = 1;
}
continue 2;
}
}
}
}
}
}
// at least one censored word was found
if (count(self::$matches) > 0) {
return self::$matches;
} else {
return false;
}
}
