yupe\helpers\YText::wordCensor PHP Method

    public static function wordCensor($str, $censored, $replacement = '')
    {
        if (!is_array($censored)) {
            return $str;
        }
        $str = ' ' . $str . ' ';
        // \w, \b and a few others do not match on a unicode character
        // set for performance reasons. As a result words like über
        // will not match on a word boundary. Instead, we'll assume that
        // a bad word will be bookended by any of these characters.
        $delim = '[-_\'\\"`(){}<>\\[\\]|!?@#%&,.:;^~*+=\\/ 0-9\\n\\r\\t]';
        foreach ($censored as $badword) {
            if ($replacement != '') {
                $str = preg_replace("/({$delim})(" . str_replace('\\*', '\\w*?', preg_quote($badword, '/')) . ")({$delim})/i", "\\1{$replacement}\\3", $str);
            } else {
                $str = preg_replace("/({$delim})(" . str_replace('\\*', '\\w*?', preg_quote($badword, '/')) . ")({$delim})/ie", "'\\1'.str_repeat('#', strlen('\\2')).'\\3'", $str);
            }
        }
        return trim($str);
    }